Slashdot Mirror

snydeq writes "Opening arguments were heard today in the trial against IT admin Terry Childs, who was arrested 18 months ago for refusing to hand over passwords to the San Francisco city network. InfoWorld's Paul Venezia, who has been following the case from the start, speculates that the 18-month wait is due to the fact that 'the DA has done no homework on the technical issues in play here and is instead more than willing to use the Frankenstein offense: It's different, so it must be killed.' On the other hand, the city — which has held Childs on $5 million bail despite having already dropped three of the four charges against him — may have finally figured out 'just how ridiculous the whole scenario is but is too far down the line to pull back the reins and is continuing with the prosecution just to save face,' Venezia writes. The trial is expected to last until mid-March. San Francisco Mayor Gavin Newsom, to whom Childs eventually gave the city's network passwords, will be included in the roster of those who will testify in the case — one that could put all admins in danger should Childs be found guilty of tampering."

snydeq writes "Opening arguments were heard today in the trial against IT admin Terry Childs, who was arrested 18 months ago for refusing to hand over passwords to the San Francisco city network. InfoWorld's Paul Venezia, who has been following the case from the start, speculates that the 18-month wait is due to the fact that 'the DA has done no homework on the technical issues in play here and is instead more than willing to use the Frankenstein offense: It's different, so it must be killed.' On the other hand, the city — which has held Childs on $5 million bail despite having already dropped three of the four charges against him — may have finally figured out 'just how ridiculous the whole scenario is but is too far down the line to pull back the reins and is continuing with the prosecution just to save face,' Venezia writes. The trial is expected to last until mid-March. San Francisco Mayor Gavin Newsom, to whom Childs eventually gave the city's network passwords, will be included in the roster of those who will testify in the case — one that could put all admins in danger should Childs be found guilty of tampering."

snydeq writes "Opening arguments were heard today in the trial against IT admin Terry Childs, who was arrested 18 months ago for refusing to hand over passwords to the San Francisco city network. InfoWorld's Paul Venezia, who has been following the case from the start, speculates that the 18-month wait is due to the fact that 'the DA has done no homework on the technical issues in play here and is instead more than willing to use the Frankenstein offense: It's different, so it must be killed.' On the other hand, the city — which has held Childs on $5 million bail despite having already dropped three of the four charges against him — may have finally figured out 'just how ridiculous the whole scenario is but is too far down the line to pull back the reins and is continuing with the prosecution just to save face,' Venezia writes. The trial is expected to last until mid-March. San Francisco Mayor Gavin Newsom, to whom Childs eventually gave the city's network passwords, will be included in the roster of those who will testify in the case — one that could put all admins in danger should Childs be found guilty of tampering."

angry tapir writes "Australia may finally get an adults only, R18+ classification for computer games, with the federal government releasing a discussion paper summarizing the key arguments for and against an R18+ classification. Submissions are currently being sought from the community on whether the Australian National Classification Scheme should include an R18+ category for computer and video games. In the past the board responsible for classifying games and movies has banned some titles outright because of the lack of an adults only classification — Aliens Vs. Predator is just the most recent in a long line. The Attorney-General's report on the issue is available online."

eldavojohn writes "The Software Freedom Law Center has filed a lawsuit accusing fourteen companies, including Best Buy, Samsung and Westinghouse, of violating the GPL in nearly 20 separate products. This is similar to earlier BusyBox GPL suits. The commercial uses of BusyBox must be much more prolific than anyone could have imagined. Having dealt with hundreds of compliance problems and finding an average of one violation per day, the SFLC recommends one thing: be responsive to their requests (they try to settle things in private first) lest you find one of these (PDF) in your inbox."

eldavojohn writes "The Software Freedom Law Center has filed a lawsuit accusing fourteen companies, including Best Buy, Samsung and Westinghouse, of violating the GPL in nearly 20 separate products. This is similar to earlier BusyBox GPL suits. The commercial uses of BusyBox must be much more prolific than anyone could have imagined. Having dealt with hundreds of compliance problems and finding an average of one violation per day, the SFLC recommends one thing: be responsive to their requests (they try to settle things in private first) lest you find one of these (PDF) in your inbox."

Luke has no name writes "Yesterday we discussed MySQL founder Monty Widenius's objections to the acquisition of MySQL by Oracle. Today, Oracle released a statement to address some of these issues. Among their commitments, Oracle says they intend to continue releasing MySQL under the GPL, allow vendors to produce 'any-license' third-party engines, maintain the Reference Manual, invest millions into the product, and create a 'customer advisory board.' The pledges are still not enough for some, however."

blackbearnh writes "As previously reported on Slashdot, PayPal recently released a series of new APIs that allow developers to embed PayPal into their web sites and applications without requiring the user to go to the PayPal web site to complete the transaction. To encourage developers to use these new APIs, PayPal is offering two prizes totaling $150,000 for interesting new applications. The entry deadline to register ideas is December 16th, and O'Reilly has an interview with the director of the PayPal Developer Network that covers the details of the contest. In it, Naveed Anwar talks about why PayPal is throwing money at developers. 'When Facebook opened up their platform, it allowed people to work in that particular environment, in the Facebook environment. When the iPhone opened up their platform, they allowed people to work in their environment which was build the applications on the iPhone. When PayPal was looking at opening up its platform, we are not limited by one particular area. We go into the enterprises. We go into social networking. We go into all the places where payment as a solution is needed. And if we can actually reduce that barrier of entry — because at the end of the day, when anyone is building out a business and anyone is building out an application, they're looking at ways of monetizing it.'"

swsuehr writes "The Book of Xen: A Practical Guide for the System Administrator provides an excellent resource for learning about Xen virtualization. I frequently need to create test environments for examples that appear in various books and magazine articles (in the interest of full disclosure, I've never written for the publisher of this book). In the days before virtualization that meant finding and piecing together hardware. Like many readers, I've been using virtualization in one form or another for several years, including Xen. This book would've saved hours searching around the web looking for tidbits of information and sifting through what works and doesn't work in setting up Xen environments. The authors have done the sifting for me within the ~250 pages of the book. But far beyond, the authors also convey their experience with Xen using walkthroughs, tips, and recommendations for Xen in the real world." Read on for the rest of Steve's review. The Book of Xen: A Practical Guide for the System Administrator author Luke Crawford, Chris Takemura pages 312 publisher No Starch Press rating 9/10 reviewer Steve Suehring ISBN 1593271867 summary A guide for using Xen for virtualization. The Book of Xen is written with the system administrator in mind; someone who is comfortable with tasks like installing Linux and working with the command line. While it wouldn't be impossible for someone completely new to Linux to accomplish the tasks in the book, a bit of experience would go a long way to both visualize and complete the installation and configuration steps shown in the book. As stated in the introduction, the book is organized "(mostly) alternating between theoretical and practical discussion [because] an admin needs both practical experience and a firm theoretical ground to effectively solve problems..." (xxiii).

The authors do an excellent job of explaining what Xen is and where it fits in the virtualization landscape. This explanation begins with the introduction where the reader gathers a brief history of virtualization along with Xen's place in the landscape. Xen's limitations and reasons for using Xen are also covered right in the introduction, along with an overview of the book.

Chapter 1 begins with a high-level overview of Xen. This discussion is excellent if only to get the readers on equal footing for the discussions to come later in the book. Included in this chapter is a discussion of various techniques for virtualization including Full Virtualization, OS Virtualization, and Paravirtualization. The section on Paravirtualization leads nicely into some of the underlying details of scheduling, interrupts, and memory, and other resource management which are handled by Xen and discussed later in the chapter.

Chapter 2 sends the reader down the path of installing and using Xen. It's a short chapter, coming in at about 9 pages, and the reader is expected to be able to handle an install of CentOS with just a bit of guidance from the authors on specific options to select. This is a key point for those among us who have a preference for a certain Linux distribution. The book isn't tied specifically to a single distro, as the authors note in the introduction, "[w]e've tried to keep this book as distribution- and version-independent as possible, except in the tutorial sections, where we try to be extremely specific and detailed..." (xxiv). The base or host system upon which the examples run is based on CentOS, which the authors acknowledge and highlight in Chapter 2, "[f]or the purposes of this chapter, we'll assume you're installing CentOS 5.x with the server defaults and using its built-in Xen support. If you're using something else, this chapter will probably still be useful, but you might have to improvise a bit" (13). There is discussion of the Xen-tools package in a later chapter which shows its installation under Debian Linux too. So far from being tied to one distro, the book is refreshingly neutral in this regard.

By the end of Chapter 2, the reader has a working Xen host system and a domain 0 or dom0 host upon which to provision virtual machines. Included in Chapter 3 is a discussion of how to provision guest operating systems, known as domU in Xen-speak. The authors devote a good number of pages to making this task clear, and work through examples of basic domU installation and the use of package management systems and Debian's debootstrap to create domUs. Additionally in Chapter 3 the reader learns how to convert VMware disk images to a format usable by Xen.

Chapters 4 and 5 examine details of the Xen backend, including storage and networking. Chapter 4 stands out for its recommendation of blktap and LVM (Logical Volume Manager) as the storage backend as well as an overview of LVM itself, along with the use of networked storage for Xen.

Chapter 6 looks at tools for management of Xen, focusing on Xen-tools, libvirt, and Xen-shell while Chapter 7 gives advice for hosting untrusted users with Xen. Chapter 8 discusses the use of Xen with Unix-like operating systems and includes sections on Solaris and NetBSD.

The ability to migrate the virtual machine from one physical machine to another is one of the advantages of virtualization. As pointed out by the authors, a virtual machine might be migrated to take advantage of newer hardware, to perform maintenance, or any number of other reasons. Chapter 9 is of interest for its discussion of Xen migration. Cold and Live migrations are examined and Footnote 1 on page 126 is interesting for its reference to the Kemari Project and Project Remus which are projects to add hardware redundancy to Xen.

Tools and techniques for the measurement of Xen performance are shown in Chapter 10, which walks the reader through basic usage of well-known tools such as Bonnie++, httperf, UnixBench, and others. More importantly for the Xen admin is the discussion of Xen-aware profilers like Xenoprof which is "a version of OProfile that has been extended to work as a system-wide profiling tool under Xen..." (151).

Chapter 11 covers the Citrix XenServer, which is the enterprise-grade commercial Xen product from Citrix. The authors summarized it best in the review of Chapter 11: "Can Citrix's product replace the open source Xen? As always, the answer is maybe. It offers significant improvements in management and some interesting new capabilities, but that's balanced against the substantial cost and annoying limitations" (174).

Chapter 12 begins the discussion of Hardware Virtual Machines (HVMs), which are virtualization extensions that enable "an unmodified operating system [to run] as a domU" (176). This means the ability to run an unmodified version of Microsoft Windows as a guest OS within a Xen environment. The HVM discussion in Chapter 12 leads nicely into Chapter 13, "Xen and Windows".

The main chapters of the book end with Chapter 14, "Tips", and Chapter 15, "Troubleshooting". Both chapters draw on the experience of the authors and provide value to the book for their recommendations. Though the tool of choice for troubleshooting is the nearest Google search box, it's still helpful to glance over the content in the Troubleshooting chapter if for no other reason than to maybe remember that it's there when you receive the dreaded "Error: DestroyDevice() takes exactly 3 arguments" error.

The Book of Xen is almost certainly a time-saver for anyone looking to implement Xen or virtualization with Linux. The back cover states "The Complete Guide to Virtualization with Xen". The book lives up to that statement and more.

You can purchase The Book of Xen: A Practical Guide for the System Administrator from amazon.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

swsuehr writes "The Book of Xen: A Practical Guide for the System Administrator provides an excellent resource for learning about Xen virtualization. I frequently need to create test environments for examples that appear in various books and magazine articles (in the interest of full disclosure, I've never written for the publisher of this book). In the days before virtualization that meant finding and piecing together hardware. Like many readers, I've been using virtualization in one form or another for several years, including Xen. This book would've saved hours searching around the web looking for tidbits of information and sifting through what works and doesn't work in setting up Xen environments. The authors have done the sifting for me within the ~250 pages of the book. But far beyond, the authors also convey their experience with Xen using walkthroughs, tips, and recommendations for Xen in the real world." Read on for the rest of Steve's review. The Book of Xen: A Practical Guide for the System Administrator author Luke Crawford, Chris Takemura pages 312 publisher No Starch Press rating 9/10 reviewer Steve Suehring ISBN 1593271867 summary A guide for using Xen for virtualization. The Book of Xen is written with the system administrator in mind; someone who is comfortable with tasks like installing Linux and working with the command line. While it wouldn't be impossible for someone completely new to Linux to accomplish the tasks in the book, a bit of experience would go a long way to both visualize and complete the installation and configuration steps shown in the book. As stated in the introduction, the book is organized "(mostly) alternating between theoretical and practical discussion [because] an admin needs both practical experience and a firm theoretical ground to effectively solve problems..." (xxiii).

The authors do an excellent job of explaining what Xen is and where it fits in the virtualization landscape. This explanation begins with the introduction where the reader gathers a brief history of virtualization along with Xen's place in the landscape. Xen's limitations and reasons for using Xen are also covered right in the introduction, along with an overview of the book.

Chapter 1 begins with a high-level overview of Xen. This discussion is excellent if only to get the readers on equal footing for the discussions to come later in the book. Included in this chapter is a discussion of various techniques for virtualization including Full Virtualization, OS Virtualization, and Paravirtualization. The section on Paravirtualization leads nicely into some of the underlying details of scheduling, interrupts, and memory, and other resource management which are handled by Xen and discussed later in the chapter.

Chapter 2 sends the reader down the path of installing and using Xen. It's a short chapter, coming in at about 9 pages, and the reader is expected to be able to handle an install of CentOS with just a bit of guidance from the authors on specific options to select. This is a key point for those among us who have a preference for a certain Linux distribution. The book isn't tied specifically to a single distro, as the authors note in the introduction, "[w]e've tried to keep this book as distribution- and version-independent as possible, except in the tutorial sections, where we try to be extremely specific and detailed..." (xxiv). The base or host system upon which the examples run is based on CentOS, which the authors acknowledge and highlight in Chapter 2, "[f]or the purposes of this chapter, we'll assume you're installing CentOS 5.x with the server defaults and using its built-in Xen support. If you're using something else, this chapter will probably still be useful, but you might have to improvise a bit" (13). There is discussion of the Xen-tools package in a later chapter which shows its installation under Debian Linux too. So far from being tied to one distro, the book is refreshingly neutral in this regard.

By the end of Chapter 2, the reader has a working Xen host system and a domain 0 or dom0 host upon which to provision virtual machines. Included in Chapter 3 is a discussion of how to provision guest operating systems, known as domU in Xen-speak. The authors devote a good number of pages to making this task clear, and work through examples of basic domU installation and the use of package management systems and Debian's debootstrap to create domUs. Additionally in Chapter 3 the reader learns how to convert VMware disk images to a format usable by Xen.

Chapters 4 and 5 examine details of the Xen backend, including storage and networking. Chapter 4 stands out for its recommendation of blktap and LVM (Logical Volume Manager) as the storage backend as well as an overview of LVM itself, along with the use of networked storage for Xen.

Chapter 6 looks at tools for management of Xen, focusing on Xen-tools, libvirt, and Xen-shell while Chapter 7 gives advice for hosting untrusted users with Xen. Chapter 8 discusses the use of Xen with Unix-like operating systems and includes sections on Solaris and NetBSD.

The ability to migrate the virtual machine from one physical machine to another is one of the advantages of virtualization. As pointed out by the authors, a virtual machine might be migrated to take advantage of newer hardware, to perform maintenance, or any number of other reasons. Chapter 9 is of interest for its discussion of Xen migration. Cold and Live migrations are examined and Footnote 1 on page 126 is interesting for its reference to the Kemari Project and Project Remus which are projects to add hardware redundancy to Xen.

Tools and techniques for the measurement of Xen performance are shown in Chapter 10, which walks the reader through basic usage of well-known tools such as Bonnie++, httperf, UnixBench, and others. More importantly for the Xen admin is the discussion of Xen-aware profilers like Xenoprof which is "a version of OProfile that has been extended to work as a system-wide profiling tool under Xen..." (151).

Chapter 11 covers the Citrix XenServer, which is the enterprise-grade commercial Xen product from Citrix. The authors summarized it best in the review of Chapter 11: "Can Citrix's product replace the open source Xen? As always, the answer is maybe. It offers significant improvements in management and some interesting new capabilities, but that's balanced against the substantial cost and annoying limitations" (174).

Chapter 12 begins the discussion of Hardware Virtual Machines (HVMs), which are virtualization extensions that enable "an unmodified operating system [to run] as a domU" (176). This means the ability to run an unmodified version of Microsoft Windows as a guest OS within a Xen environment. The HVM discussion in Chapter 12 leads nicely into Chapter 13, "Xen and Windows".

The main chapters of the book end with Chapter 14, "Tips", and Chapter 15, "Troubleshooting". Both chapters draw on the experience of the authors and provide value to the book for their recommendations. Though the tool of choice for troubleshooting is the nearest Google search box, it's still helpful to glance over the content in the Troubleshooting chapter if for no other reason than to maybe remember that it's there when you receive the dreaded "Error: DestroyDevice() takes exactly 3 arguments" error.

The Book of Xen is almost certainly a time-saver for anyone looking to implement Xen or virtualization with Linux. The back cover states "The Complete Guide to Virtualization with Xen". The book lives up to that statement and more.

You can purchase The Book of Xen: A Practical Guide for the System Administrator from amazon.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

newscloud writes "Tech writer Glenn Fleishman compares the arguments against affordable, high speed, broadband Internet access in each home to arguments made against providing for common access to electricity in 1900 e.g. '...electric light is not a necessity for every member of the community. It is not the business of any one to see that I use electricity, or gas, or oil in my house, or even that I use any form of artificial light at all.' Says Fleishman, 'Electricity should go to people who had money, not hooked up willy-nilly to everyone ... Like electricity, the notion of whether broadband is an inherent right and necessity of every citizen is up for grabs in the US. Sweden and Finland have already answered the question: It's a birthright.'"

fredboboss sends news about Mozilla's email client Thunderbird 3, whose release we noted last week. "Thunderbird 3 contains code from the French military, which decided the open source product was more secure than Microsoft's rival Outlook. The French government is beginning to move to other open source software, including Linux instead of Windows and OpenOffice instead of Microsoft Office. Thunderbird 3 used some of the code from TrustedBird, a generalized and co-branded version of Thunderbird with security extensions built by the French military."

jamie passes along a Newsfactor piece that begins "In a not-uncommon development for the social-networking leader, Facebook's recently released privacy controls are leaving the company a bit red-faced. As a result of a new policy that by default makes users' profiles, photos, and friends lists available on the Web, almost 300 personal photos of founder Mark Zuckerberg became publicly available, a development that had gossip sites like Gawker yukking it up."

jamie passes along a Newsfactor piece that begins "In a not-uncommon development for the social-networking leader, Facebook's recently released privacy controls are leaving the company a bit red-faced. As a result of a new policy that by default makes users' profiles, photos, and friends lists available on the Web, almost 300 personal photos of founder Mark Zuckerberg became publicly available, a development that had gossip sites like Gawker yukking it up."

hubert.lepicki writes "I use Google all the time. I keep two GMail tabs open when I'm online (one is private, another is a corporate account), I use Google search, and recently I switched to the Chromium browser. Google's services are fast, easy to use and usually reliable. At the same time, I know Google is tracking everything I do; I can see it in search results or their ads on web pages, which tend to match my interests. After the recent post by Mozilla's community director suggesting Bing has a better privacy policy (a response to questionable comments from Google CEO Eric Schmidt), I started to... 'google' ways of keeping my private data safe while browsing and using Google services. The results weren't very helpful, so I ask you, Slashdotters: how do I stay anonymous to Google while using their services?"

hubert.lepicki writes "I use Google all the time. I keep two GMail tabs open when I'm online (one is private, another is a corporate account), I use Google search, and recently I switched to the Chromium browser. Google's services are fast, easy to use and usually reliable. At the same time, I know Google is tracking everything I do; I can see it in search results or their ads on web pages, which tend to match my interests. After the recent post by Mozilla's community director suggesting Bing has a better privacy policy (a response to questionable comments from Google CEO Eric Schmidt), I started to... 'google' ways of keeping my private data safe while browsing and using Google services. The results weren't very helpful, so I ask you, Slashdotters: how do I stay anonymous to Google while using their services?"

jamie sends in a blog post from MySQL co-founder Monty Widenius calling for help to "save MySQL from Oracle's clutches." While the US DoJ approved Oracle's purchase of Sun back in August, the European Commission has been less forthcoming. Widenius points out that Oracle has been using their customers to put pressure on the EC, and he questions Oracle's commitment to MySQL, saying their vague promises aren't good enough. He writes: "Oracle has NOT promised (as far as I know and certainly not in a legally binding manner): To keep (all of) MySQL under an open source license; Not to add closed source parts, modules or required tools; To not raise MySQL license or MySQL support prices; To release new MySQL versions in a regular and timely manner; To continue with dual licensing and always provide affordable commercial licenses to MySQL to those who needs them (to storage vendors and application vendors) or provide MySQL under a more permissive license; To develop MySQL as an Open Source project; To actively work with the community; Apply submitted patches in a timely manner; To not discriminate patches that make MySQL compete more with Oracle's other products; To ensure that MySQL is improved also in manners that make it compete even more with Oracle's main offering."

jamie sends in a blog post from MySQL co-founder Monty Widenius calling for help to "save MySQL from Oracle's clutches." While the US DoJ approved Oracle's purchase of Sun back in August, the European Commission has been less forthcoming. Widenius points out that Oracle has been using their customers to put pressure on the EC, and he questions Oracle's commitment to MySQL, saying their vague promises aren't good enough. He writes: "Oracle has NOT promised (as far as I know and certainly not in a legally binding manner): To keep (all of) MySQL under an open source license; Not to add closed source parts, modules or required tools; To not raise MySQL license or MySQL support prices; To release new MySQL versions in a regular and timely manner; To continue with dual licensing and always provide affordable commercial licenses to MySQL to those who needs them (to storage vendors and application vendors) or provide MySQL under a more permissive license; To develop MySQL as an Open Source project; To actively work with the community; Apply submitted patches in a timely manner; To not discriminate patches that make MySQL compete more with Oracle's other products; To ensure that MySQL is improved also in manners that make it compete even more with Oracle's main offering."

azoblue writes with news that following MySpace's acquisition and shutdown of imeem, independent artists who sold their music through imeem's Snocap music storefronts (on MySpace and other sites) won't be paid what's owed them. More than 110,000 artists are believed to be affected. The crux of the problem is that MySpace acquired only a certain portion of the assets that were imeem — "the domain name and certain technology and trademarks" — and not imeem’s outstanding debts, including the money imeem owed to artists under the Snocap relationship. According to the article, some artists have been owed money for more than a year. "Napster creator Shawn Fanning co-founded Snocap in 2002 to let artists sell their music through an embeddable storefront widget. At one point, the service was marketed as the exclusive way for artists to sell music on MySpace. Imeem bought Snocap last summer. But because MySpace left most aspects of Snocap out of its acquisition of imeem’s assets, all 110,000 or so of those storefronts are gone. The server that hosts them is offline and so is the Snocap website."

jamie found a long and painstaking piece up at The Economist asking and provisionally answering the question: "Does the spirit of scientific scepticism really require that I remain forever open-minded to denialist humbug until it's shown to be wrong?" The author, who is not named, spent several hours picking apart the arguments of one Willis Eschenbach, AGW denialist, who on Dec. 8 published what he called the "smoking gun" — it was supposed to prove that the adjustments climate scientists make to historical temperature records are arbitrary to the point of intentional manipulation. The conclusion: "[H]ere's my solution to this problem: this is why we have peer review. Average guys with websites can do a lot of amazing things. One thing they cannot do is reveal statistical manipulation in climate-change studies that require a PhD in a related field to understand. So for the time being, my response to any and all further 'smoking gun' claims begins with: show me the peer-reviewed journal article demonstrating the error here. Otherwise, you're a crank and this is not a story. And then I'll probably go ahead and try to investigate the claim and write a blog post about it, because that's my job. Oh, and by the way: October was the hottest month on record in Darwin, Australia."

jangel writes "Stanford University researchers have demonstrated a way to turn ordinary paper into a battery, which may be crumpled or pressed into any form. It's said the technology promises greater durability, higher efficiency, and faster energy transfer than traditional batteries. The technique uses special ink made of carbon nanotubes and silver nanowires. Thanks to the small diameters of these materials, the ink sticks strongly to the fibrous paper, allowing the battery to be extremely durable. The paper battery could last through 40,000 charge-discharge cycles — at least an order of magnitude more than lithium batteries. According to the researchers, the paper batteries will be low-cost, may be crumpled or folded, and can even be soaked in acidic or basic solutions, yet their performance does not degrade. 'We just haven't tested what happens when you burn it,' one of the researchers quipped." This is the same Stanford research team, lead by Yi Cui, whose work with nanotechnology for battery applications we have discussed before. We've also delved into alternate routes to the holy grail of the ultra-thin battery.

jangel writes "Stanford University researchers have demonstrated a way to turn ordinary paper into a battery, which may be crumpled or pressed into any form. It's said the technology promises greater durability, higher efficiency, and faster energy transfer than traditional batteries. The technique uses special ink made of carbon nanotubes and silver nanowires. Thanks to the small diameters of these materials, the ink sticks strongly to the fibrous paper, allowing the battery to be extremely durable. The paper battery could last through 40,000 charge-discharge cycles — at least an order of magnitude more than lithium batteries. According to the researchers, the paper batteries will be low-cost, may be crumpled or folded, and can even be soaked in acidic or basic solutions, yet their performance does not degrade. 'We just haven't tested what happens when you burn it,' one of the researchers quipped." This is the same Stanford research team, lead by Yi Cui, whose work with nanotechnology for battery applications we have discussed before. We've also delved into alternate routes to the holy grail of the ultra-thin battery.

jangel writes "Stanford University researchers have demonstrated a way to turn ordinary paper into a battery, which may be crumpled or pressed into any form. It's said the technology promises greater durability, higher efficiency, and faster energy transfer than traditional batteries. The technique uses special ink made of carbon nanotubes and silver nanowires. Thanks to the small diameters of these materials, the ink sticks strongly to the fibrous paper, allowing the battery to be extremely durable. The paper battery could last through 40,000 charge-discharge cycles — at least an order of magnitude more than lithium batteries. According to the researchers, the paper batteries will be low-cost, may be crumpled or folded, and can even be soaked in acidic or basic solutions, yet their performance does not degrade. 'We just haven't tested what happens when you burn it,' one of the researchers quipped." This is the same Stanford research team, lead by Yi Cui, whose work with nanotechnology for battery applications we have discussed before. We've also delved into alternate routes to the holy grail of the ultra-thin battery.

jangel writes "Stanford University researchers have demonstrated a way to turn ordinary paper into a battery, which may be crumpled or pressed into any form. It's said the technology promises greater durability, higher efficiency, and faster energy transfer than traditional batteries. The technique uses special ink made of carbon nanotubes and silver nanowires. Thanks to the small diameters of these materials, the ink sticks strongly to the fibrous paper, allowing the battery to be extremely durable. The paper battery could last through 40,000 charge-discharge cycles — at least an order of magnitude more than lithium batteries. According to the researchers, the paper batteries will be low-cost, may be crumpled or folded, and can even be soaked in acidic or basic solutions, yet their performance does not degrade. 'We just haven't tested what happens when you burn it,' one of the researchers quipped." This is the same Stanford research team, lead by Yi Cui, whose work with nanotechnology for battery applications we have discussed before. We've also delved into alternate routes to the holy grail of the ultra-thin battery.

Charbax writes "Last April, Microsoft argued that it controlled the netbook OS market for devices sold in certain Microsoft-friendly US retail stores, while ABI Research claims that Linux actually has 32% of the worldwide netbook market, and that its market-share is growing. At the recent Netbook World Summit in Paris France, Aaron J. Seigo, Community leader at the KDE Foundation, and Arnaud Laprévote, CTO at Mandriva Linux, give us their estimation for next year's Linux market share (video) in the consumer laptop market. Their estimation is that Linux will dominate in ARM-powered laptops and that those may take over a significant share of the overall laptop market by their significantly cheaper prices (as low as $80), longer battery life (as long as 20-40 hours on a small battery using the Pixel Qi screens), as well as lower size and weight. Running some of the Chromium OS builds for ARM available shortly and having a full browser experience on those cheaper and better ARM-powered Linux laptops could make it a significant mass market success to shake up the Intel and Microsoft consumer PC/laptop monopoly in its boots."

Hugh Pickens writes "Currently, the National Institutes of Health require that research funded by its grants be made available to the public online at no charge within 12 months of publication. Now the Office of Science and Technology Policy in the Executive Office of the President is launching a 'Public Access Policy Forum' to determine whether this policy should be extended to other science agencies and, if so, how it should be implemented. 'The NIH model has a variety of features that can be evaluated, and there are other ways to offer the public enhanced access to peer-reviewed scholarly publications,' OSTP says in the request for information. 'The best models may [be] influenced by agency mission, the culture and rate of scientific development of the discipline, funding to develop archival capabilities, and research funding mechanisms.' The OSTP will conduct an interactive, online discussion that will focus on three major questions: Should this policy be extended to other science agencies and, if so, how it should be implemented? In what format should the data be submitted in order to make it easy to search and retrieve information? What are the best mechanisms to ensure compliance? 'It's very encouraging to see the Obama Administration focus on ensuring public access to the results of taxpayer-funded research [reg. required] as a key way to maximize our collective investment in science,' says Heather Joseph, executive director of the Scholarly Publishing and Academic Resources Coalition."

This entry represents the 100,000th story posted on Slashdot. Technically this is a bit late since we're missing the first few months of stories from the DB, but there are now 100k items in the story database and I thought that milestone was worthy of sharing with the universe. We've come a long way in the last 12 years, and while the site isn't always exactly what I want it to be, I'm very proud of the work done by our thousands of submitters and by the editors our readers have "affectionately" referred to as "The Slashdot Janitors" for so many years. Special grats to timothy who is just short of his 17,000th story and is far and away the most prolific person here. The hall of fame has a few other bits of trivia.

adeelarshad82 writes "About two months ago Nokia sued Apple for infringing Nokia patents in its iPhone. The 10 patents in the lawsuit, filed in the US state of Delaware, relate to technologies fundamental for devices using GSM, UMTS and/or local area network (LAN) standards. The patents cover wireless data, speech coding, security and encryption and are infringed by all Apple iPhone models shipped since the iPhone was introduced in 2007. In the latest development to the case, Apple said Friday that it had filed its own suit against Nokia, countering Nokia's claims of patent infringement with its own."

An anonymous reader writes "Not only is DRBD to be included in the Linux 2.6.33 kernel, but so is the Nouveau driver. The Nouveau driver is the free software driver that was created by clean-room reverse engineering NVIDIA's binary Linux driver. It has been in development for several years with 2D, 3D, and video support. The DRM component is set to enter the Linux 2.6.33 kernel as a staging driver. This is coming as a surprise move after yesterday Linus began ranting over Red Hat not upstreaming Nouveau and then Red Hat attributing this delay to microcode issues. The microcode issue is temporarily worked around by removing it from the driver itself and using the kernel's firmware loader to insert this potentially copyrighted work instead."

eldavojohn writes "You may recall the TSA demonstrating how tech-savvy it is by releasing a document with redactions intact. Now three Republican lawmakers are asking what's being done to prosecute those hosting the document (e.g. Cryptome and Wikileaks). In a letter to the DHS (PDF), Charles Dent (R-PA), Gus Bilirakis (R-FL), and Peter T. King (R-NY) asked, 'How has [sic] the Department of Homeland Security and the Transportation Security Administration addressed the repeated reposting of this security manual to other websites, and what legal action, if any, can be taken to compel its removal?' And they asked if the DHS is 'considering issuing new regulations pursuant to its authority in Section 114 of Title 49, United States Code, and are criminal penalties necessary or desirable to ensure such information is not reposted in the future?' King is the representative who announcing a probe into Wikileaks after the half million 9/11 pager messages were released."

eldavojohn writes "You may recall the TSA demonstrating how tech-savvy it is by releasing a document with redactions intact. Now three Republican lawmakers are asking what's being done to prosecute those hosting the document (e.g. Cryptome and Wikileaks). In a letter to the DHS (PDF), Charles Dent (R-PA), Gus Bilirakis (R-FL), and Peter T. King (R-NY) asked, 'How has [sic] the Department of Homeland Security and the Transportation Security Administration addressed the repeated reposting of this security manual to other websites, and what legal action, if any, can be taken to compel its removal?' And they asked if the DHS is 'considering issuing new regulations pursuant to its authority in Section 114 of Title 49, United States Code, and are criminal penalties necessary or desirable to ensure such information is not reposted in the future?' King is the representative who announcing a probe into Wikileaks after the half million 9/11 pager messages were released."

Ch_Omega writes "According to this article over at BarentsObserver, the giant spiral seen on the sky over Norway Wednesday morning local time has been confirmed to be the result of a failed Russian missile launch. Russia now confirms that '...the missile was launched from submerged position in the White Sea by the nuclear submarine Dmitri Donskoy. Studies of the telemetric data from the launch show that the two first stages of the missile functioned as they should, and that a technical malfunctioning occurred during the third stage.' There is also an article on this at The Daily Mail."

Jan writes "Microsoft has open sourced the Windows 7 USB/DVD Download Tool by releasing it under the GPLv2 license. The code is now available on CodePlex, Microsoft's Open Source software project hosting repository, over at wudt.codeplex.com. The actual installer for the tool is now again available for download at the Microsoft Store (2.59MB). (Microsoft previously took responsiblity for the violation.)"

eldavojohn writes "The real fallout of climategate may have nothing to do with the credibility of climate change. Daniel Henninger thinks it's a bigger problem for the scientific community as a whole and he calls out the real problem as seen through the eyes of a lay person in an opinion piece for the WSJ. Henninger muses, 'I don't think most scientists appreciate what has hit them,' and carries on in that vein, saying, 'This has harsh implications for the credibility of science generally. Hard science, alongside medicine, was one of the few things left accorded automatic stature and respect by most untrained lay persons. But the average person reading accounts of the East Anglia emails will conclude that hard science has become just another faction, as politicized and "messy" as, say, gender studies.' While nothing interesting was found by most scientific journals, he explains that the attacks against scientists in these leaked e-mails for proposing opposite views will recall the reader to the persecution of Galileo. In doing so, it will make the lay person unsure of the credibility of all sciences without fully seeing proof of it, but assuming that infighting exists in them all. Is this a serious risk? Will people even begin to doubt the most rigorous sciences like Mathematics and Physics?"

eldavojohn writes "The real fallout of climategate may have nothing to do with the credibility of climate change. Daniel Henninger thinks it's a bigger problem for the scientific community as a whole and he calls out the real problem as seen through the eyes of a lay person in an opinion piece for the WSJ. Henninger muses, 'I don't think most scientists appreciate what has hit them,' and carries on in that vein, saying, 'This has harsh implications for the credibility of science generally. Hard science, alongside medicine, was one of the few things left accorded automatic stature and respect by most untrained lay persons. But the average person reading accounts of the East Anglia emails will conclude that hard science has become just another faction, as politicized and "messy" as, say, gender studies.' While nothing interesting was found by most scientific journals, he explains that the attacks against scientists in these leaked e-mails for proposing opposite views will recall the reader to the persecution of Galileo. In doing so, it will make the lay person unsure of the credibility of all sciences without fully seeing proof of it, but assuming that infighting exists in them all. Is this a serious risk? Will people even begin to doubt the most rigorous sciences like Mathematics and Physics?"

Hynee writes "Just in time for Christmas, HubbleSite has released a Hubble Ultra Deep Field redux. The original was in visible light; this version, five years on, is in infrared (1.05, 1.25 and 1.6 um). The observation is in support of the upcoming JWST, which will observe exclusively in infrared, but the newly installed WFC3 does seem to provide some extra resolution over the 2004 visible observations with WFC2."

hduff writes "While lithium-ion batteries offer better performance than lead-acid or ni-cad batteries, the supply of lithium is limited and the batteries can pose problems. Researchers at the Technion-Israel Institute are building a better battery with easily obtainable sand and air."

ajs writes "World of Warcraft's Wrath of the Lich King expansion was staggered into 4 phases. The fourth and final phase, patch 3.3, was released on Tuesday. This patch is significant in that it will be the first introduction of one of the most anticipated new features in the game since PvP arenas: the cross-realm random dungeon, as well as the release of new end-game dungeons for 5, 10 and 25-player groups. The patch notes have been posted, and so has a trailer. The ultimate fight against the expansion's antagonist, the Lich King a.k.a. Arthas, will be gated as each of the four wings of the final dungeon are opened in turn — a process that may take several months. The next major patch after 3.3 (presumably 4.0) will be the release of Cataclysm, the next expansion."

Conchobair was one of several users letting us know that Myspace has snapped up free music streaming site imeem. Visitors to the imeem site are being sent to a MySpace redirect page, which states that they are "working to migrate your imeem playlist to MySpace Music." Currently there is no way to access imeem music or playlists or to make use of imeem apps on Android or iPhone. The AP reports that the deal was done for less than $1M — not bad for 16M subscribers — noting that the music startup was running out of cash. PC Mag notes: "Last week it was announced that Apple had purchased Lala, and now MySpace snaps up imeem. Are Pandora and Rhapsody next?"

jamie writes "The Campbell's monkey has a vocabulary with at least six types of basic call, but new research published in the PNAS claims that they combine them and string them together to communicate new meanings. (Login may be required on the NY Times site.) For example, the word for 'leopard' gets an '-oo' suffix to mean 'unseen predator.' But when that word is repeated after 'come over here,' the combination means 'Timber!' — a warning of falling trees. Scientists have known for some time that vervet monkeys have different warning calls for different predators — eagle, leopard, and snake — but unlike the Campbell's monkeys, vervets don't combine those calls to create new meanings, a key component of syntax. The researchers plan to play back recordings to the monkeys to test their theories for syntax errors."

kkleiner writes "You may remember Liam Hoekstra, the baby apparently born without the myostatin gene, and consequently sporting 40% more skeletal muscle than his peers. Using gene therapy, NCH scientists have been able to get follistatin (a myostatin blocker) to promote phenomenal muscle growth in macaque monkeys. NCH is now working with the FDA to perform the preliminary steps necessary for a human clinical trial. Is this the prelude to a super-strength gene therapy for all of us?"

darthcamaro writes "America is no longer the spam king. According to Cisco, US-originated spam dropped by over two trillion messages — American-based IP addresses sent about 6.2 trillion spam messages. The new world leader is Brazil at 7.7 trillion messages. 'I'm not completely surprised to see US falling to number two in the spam stats, but I didn't expect it to happen yet,' said Cisco Fellow Patrick Peterson. 'I was really gratified to see the actual spam volume decrease, not just ranking, but we [also] decreased the amount of spam that is pouring out of the United States.'" The drop in US spam might have had something to do with the temporary shutdown of the McColo spam ISP.

darthcamaro writes "America is no longer the spam king. According to Cisco, US-originated spam dropped by over two trillion messages — American-based IP addresses sent about 6.2 trillion spam messages. The new world leader is Brazil at 7.7 trillion messages. 'I'm not completely surprised to see US falling to number two in the spam stats, but I didn't expect it to happen yet,' said Cisco Fellow Patrick Peterson. 'I was really gratified to see the actual spam volume decrease, not just ranking, but we [also] decreased the amount of spam that is pouring out of the United States.'" The drop in US spam might have had something to do with the temporary shutdown of the McColo spam ISP.

Following our recent discussions about the growing evidence pointing to possible life on Mars, reader skywatcher2501 writes with news of a study that has ruled out one possible explanation for the levels of methane seen on that planet — that it might be replenished by disintegrating meteors entering the atmosphere. So two theories remain: either the gas is created as a by-product of reactions between volcanic rock and water, or it is a by-product of a lifeform's metabolism.

Following our recent discussions about the growing evidence pointing to possible life on Mars, reader skywatcher2501 writes with news of a study that has ruled out one possible explanation for the levels of methane seen on that planet — that it might be replenished by disintegrating meteors entering the atmosphere. So two theories remain: either the gas is created as a by-product of reactions between volcanic rock and water, or it is a by-product of a lifeform's metabolism.

christian.einfeldt writes "Linux netbooks have captured 32% of the global netbook market, says Jeff Orr, an analyst with consumer computer research firm ABI Research. The largest share of netbook sales is in the Asia-Pacific region, including Japan, Australia, and New Zealand, according to Orr. ABI's latest figures align with a statement by Dell executives in February of this year, to the effect that Linux netbooks comprised about 33% of Dell shipments of Dell Inspiron mini 9s netbooks. These data points cast doubt on claims by Microsoft that Windows XP has captured 98% of the netbook market (a figure Microsoft later revised to 93%). In an interview with DesktopLinux.com, Orr made clear that the 32% Linux netbook market share did not include either user-installed Linux or dual-boot systems, but was confined to just pre-installed Linux shipments."

An anonymous reader writes "Moxie Marlinspike, a security researcher well known for his SSL/TLS attacks, today launched a cloud-based WPA cracking service, where for $34 you can test the security of your WPA password. The WPA Cracker Web site states: 'WPA-PSK networks are vulnerable to dictionary attacks, but running a respectable-sized dictionary over a WPA network handshake can take days or weeks. WPA Cracker gives you access to a 400CPU cluster that will run your network capture against a 135 million word dictionary created specifically for WPA passwords. While this job would take over 5 days on a contemporary dual-core PC, on our cluster it takes an average of 20 minutes.'"

adeelarshad82 writes to tell us that Fusion Garage seems to be ignoring the drama surrounding the "CrunchPad" and is planning to launch their "JooJoo" tablet this Friday at midnight. Unfortunately, the device will be a long way from the imagined $200 price point, weighing in at a hefty $499. "The JooJoo comes in black and has a capacitive touch screen, enough graphic power to deliver full high-definition video, offline capabilities, and a 4GB solid-state drive, though 'most of the storage is done in the cloud,' Rathakrishnan said. He promised 5 hours of battery life. In a demo during the webcast, the device powered on in about 10 seconds, and showed icons for web-based services like Twitter, Hulu, CNN, and Gmail, though the JooJoo will not come pre-loaded with any apps, Rathakrishnan said. Scroll through them with your finger as you would on the iPhone. In terms of the ownership drama, Rathakrishnan said that TechCrunch editor Arrington has created an 'incomplete and distorted story.'"

brothke writes "While there is a plethora of books such as Public Speaking for Dummies, and many similar titles, Confessions of a Public Speaker is unique in that it takes a holistic approach to the art and science of public speaking. The book doesn't just provide helpful hints, it attempts to make the speaker, and his associated presentation, compelling and necessary. Confessions is Scott Berkun's first-hand account of his many years of public speaking, teaching and television appearances. In the book, he shares his successes, failures, and many frustrating experiences, in the hope that the reader will be a better speaker for it." Keep reading for the rest of Ben's review. Confessions of a Public Speaker author Scott Berkun pages 238 pages publisher O'Reilly Media rating 8/10 reviewer Ben Rothke ISBN 0596801998 summary Professional speaker Scott Berkun reveals the techniques behind what great communicators do An issue with many books on public speaking is that they focus on the mechanics of public speaking. While there is nothing necessarily wrong with that approach, Confessions takes a much deeper and analytical look at public speaking. The book demonstrates that the best public speakers are not simply people with fancy PowerPoints; rather they are excellent communicators with a strong message.

While other books focus and stress the importance of creating good PowerPoints, Confessions shows how one can rise above the PowerPoint and be a presenter of ideas to the audience. Such an approach can take a dry presentation and turn it into a compelling one.

Berkun notes that while many people perceive public speaking to be a terrifying experience, the reality is that it does not have to be so petrifying. With fundamental preparations, even the most timid person can be a public speaker. While such a person will never be a speaker at the caliber of a Steve Jobs, there is no reason they can't present an enjoyable and educating presentation.

The book is loaded with chapter after chapter of practical advice. Berkun also shows what to do when things go terribly wrong; from how to work a tough room, when technology fails, microphones that go bad and more.

The book also provides effective techniques on how to deal with a participant, who in the course of asking a question, turns it into a monologue or diatribe. His suggestion is to throw the question back at the audience. Ask the audience "how many people are interested in this question?", If only a fraction of the audience raise their hands, tell the questioner to come up afterwards and that you will answer them. Berkun concludes that just because a question is raised, does not mean that the speaker is obligated to answer it.

Some of the advice in the book is obvious, but only after you read it, such as not turning your back on the audience, and more. One of the better suggestions is rather than ending a talk with "are there there any questions?", use "what questions did you think I would answer but didn't?"

As an effective communicator, one would have thought that Berkun could have gotten his message across with less profanity. While the book is not necessarily profanity laden; it is there in numerous places. That will preclude the book from being purchased in many organizations sensitive to that.

Chapter 6 — the Science of not boring people — is perhaps the best chapter in the book, where Berkun takes a look at a fundamental problem with many public presentations, they are simply boring. The chapter describes an experiment in which heart-rate monitors were strapped to listening students during lectures. Their heart rate peaked at the start of the lectures and then steadily declined. Berkun notes that with this depressing fact, it's easy to understand why most lectures are slow one-way trips into sedation. Our bodies, sitting around doing little, go into rest mode, and where our bodies go, our minds will follow."

Berkun also writes of perhaps what is the biggest bane of having to listen to a speaker, death by PowerPoint. Far too many speakers lack relevant content and try to make up for that with fancy PowerPoint presentations. Berkun notes that far too few people create their content first. Rather they put their ideas immediately into a PowerPoint, with the hope that good content will magically emerge. The message Berkun says repeatedly and which speakers should take to heart, is that content is what matters, and not the sacred PowerPoint.

The reason for so much death by PowerPoint is that many speakers are seduced by the style of the presentation and get caught up in the fonts, videos, graphics, and more, and lose all context of the points that they want to make. Berkun concludes that the problem with most bad presentations is not the slides, the visuals or any of the things that most people obsess about; rather it is the lack of thinking.

The book also stresses the importance of good feedback for the speaker to grow into a better speaker. The challenge is that most attendees are reticent to give effective rebuke to the speaker. Berkun says the best way to overcome this is for a speaker to videotape themselves, and be merciless with themselves, extracting what their mistakes are.

The last chapter is "You Can't Do Worse Than This" is made up of stories of disastrous experiences from various public speakers. The chapter is exceptionally insightful and entertaining. Perhaps the funniest story was when Larry Lessig was invited to be a guest at a conference in Georgia (as in Eastern Europe) and after the introduction, was unexpectedly told that he was to give a one-hour talk comparing the German, French and American constitutions, with special insights for Georgia.

Overall, Confessions of a Public Speaker is a very well-written, entertaining and engaging overview of the art of public speaking. For those that are contemplating public speaking, or want to improve their current aptitude, it is impossible that after reading the book, they won't be a better speaker. For those that simply want to know what goes into, and what makes a really good presentation, Confessions of a Public Speaker is also a worthwhile book to read.

Ben Rothke is the author of Computer Security: 20 Things Every Employee Should Know.

You can purchase Confessions of a Public Speaker from amazon.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

brothke writes "While there is a plethora of books such as Public Speaking for Dummies, and many similar titles, Confessions of a Public Speaker is unique in that it takes a holistic approach to the art and science of public speaking. The book doesn't just provide helpful hints, it attempts to make the speaker, and his associated presentation, compelling and necessary. Confessions is Scott Berkun's first-hand account of his many years of public speaking, teaching and television appearances. In the book, he shares his successes, failures, and many frustrating experiences, in the hope that the reader will be a better speaker for it." Keep reading for the rest of Ben's review. Confessions of a Public Speaker author Scott Berkun pages 238 pages publisher O'Reilly Media rating 8/10 reviewer Ben Rothke ISBN 0596801998 summary Professional speaker Scott Berkun reveals the techniques behind what great communicators do An issue with many books on public speaking is that they focus on the mechanics of public speaking. While there is nothing necessarily wrong with that approach, Confessions takes a much deeper and analytical look at public speaking. The book demonstrates that the best public speakers are not simply people with fancy PowerPoints; rather they are excellent communicators with a strong message.

While other books focus and stress the importance of creating good PowerPoints, Confessions shows how one can rise above the PowerPoint and be a presenter of ideas to the audience. Such an approach can take a dry presentation and turn it into a compelling one.

Berkun notes that while many people perceive public speaking to be a terrifying experience, the reality is that it does not have to be so petrifying. With fundamental preparations, even the most timid person can be a public speaker. While such a person will never be a speaker at the caliber of a Steve Jobs, there is no reason they can't present an enjoyable and educating presentation.

The book is loaded with chapter after chapter of practical advice. Berkun also shows what to do when things go terribly wrong; from how to work a tough room, when technology fails, microphones that go bad and more.

The book also provides effective techniques on how to deal with a participant, who in the course of asking a question, turns it into a monologue or diatribe. His suggestion is to throw the question back at the audience. Ask the audience "how many people are interested in this question?", If only a fraction of the audience raise their hands, tell the questioner to come up afterwards and that you will answer them. Berkun concludes that just because a question is raised, does not mean that the speaker is obligated to answer it.

Some of the advice in the book is obvious, but only after you read it, such as not turning your back on the audience, and more. One of the better suggestions is rather than ending a talk with "are there there any questions?", use "what questions did you think I would answer but didn't?"

As an effective communicator, one would have thought that Berkun could have gotten his message across with less profanity. While the book is not necessarily profanity laden; it is there in numerous places. That will preclude the book from being purchased in many organizations sensitive to that.

Chapter 6 — the Science of not boring people — is perhaps the best chapter in the book, where Berkun takes a look at a fundamental problem with many public presentations, they are simply boring. The chapter describes an experiment in which heart-rate monitors were strapped to listening students during lectures. Their heart rate peaked at the start of the lectures and then steadily declined. Berkun notes that with this depressing fact, it's easy to understand why most lectures are slow one-way trips into sedation. Our bodies, sitting around doing little, go into rest mode, and where our bodies go, our minds will follow."

Berkun also writes of perhaps what is the biggest bane of having to listen to a speaker, death by PowerPoint. Far too many speakers lack relevant content and try to make up for that with fancy PowerPoint presentations. Berkun notes that far too few people create their content first. Rather they put their ideas immediately into a PowerPoint, with the hope that good content will magically emerge. The message Berkun says repeatedly and which speakers should take to heart, is that content is what matters, and not the sacred PowerPoint.

The reason for so much death by PowerPoint is that many speakers are seduced by the style of the presentation and get caught up in the fonts, videos, graphics, and more, and lose all context of the points that they want to make. Berkun concludes that the problem with most bad presentations is not the slides, the visuals or any of the things that most people obsess about; rather it is the lack of thinking.

The book also stresses the importance of good feedback for the speaker to grow into a better speaker. The challenge is that most attendees are reticent to give effective rebuke to the speaker. Berkun says the best way to overcome this is for a speaker to videotape themselves, and be merciless with themselves, extracting what their mistakes are.

The last chapter is "You Can't Do Worse Than This" is made up of stories of disastrous experiences from various public speakers. The chapter is exceptionally insightful and entertaining. Perhaps the funniest story was when Larry Lessig was invited to be a guest at a conference in Georgia (as in Eastern Europe) and after the introduction, was unexpectedly told that he was to give a one-hour talk comparing the German, French and American constitutions, with special insights for Georgia.

Overall, Confessions of a Public Speaker is a very well-written, entertaining and engaging overview of the art of public speaking. For those that are contemplating public speaking, or want to improve their current aptitude, it is impossible that after reading the book, they won't be a better speaker. For those that simply want to know what goes into, and what makes a really good presentation, Confessions of a Public Speaker is also a worthwhile book to read.

Ben Rothke is the author of Computer Security: 20 Things Every Employee Should Know.

You can purchase Confessions of a Public Speaker from amazon.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.