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10 years ago you might have had to improvise, but today you can get cheap high quality antennas and amplifiers that is a lot better than a USB dongle in an old satellite dish.

My favorite source is http://www.hyperlinktech.com/
and you can do your link analysis here:
http://cgi.gbppr.org/wireless.main.cgi

If you really need big distances, you can use an old 12' sattelite dish, but otherwise stick to the formula above. It will save you a lot of time and trouble.

I have reliable links over 10km with 10mW running at 50Mb/s

There is a working mirror of the old L0pht website here.

Here is another 2600-like hacker magazine. It's pretty interesting...

Here's what appears to be an anti-2600 magazine. Definitely different, and with good technical info.

Here are some really useful utilities to help design wireless networks and to help plot their approximate coverage areas:

Microwave Radio Path Analysis Generates a terrain profile graph and obstruction report for a microwave radio link between two points

Wireless Network Link Analysis Calculates approximate received power level and fade margins for microwave wireless links

Longley-Rice Path Loss Analysis Generates a image showing the estimated Longley-Rice path loss for a given transmitter location

More utilities are linked from here

Here is a website for homebrew/amateur radio related wireless experimenting. It covers the construction of homebrew amplifiers, antennas, receiving converters, etc. They also have path analysis and line-of-sight analysis CGI utilities.

Green Bay Professional Packet Radio

Here is a Wireless Network Link Analysis CGI that can be used to determine if your current wireless setup will work. Calculates fade margins and probability-of-outage.

It's part of the work done by Green Bay Professional Packet Radio

There are motley crews beaming no-cost broadband in several dozen cities around the world. Unless they've managed to slather the entire Lower East Side with access points and get a fair number of end-user type participants, what the hell is so special about New York's version of this idea?

I'm doing this in Chicago (things are moving slowly). My personal favorites in the community wireless world are Seattle Wireless and Green Bay Professional Packet Radio (GBPPR has some great tech and a very experimental bent, but they won't give you the time of day unless you can convert mw to dBm in your head... fine with me).

The way DSL is going, I can't wait for stuff like this to pick up some momentum.

Don't we see wireless work every where already? I mean right in our own us we have people who are probably doing more advanced things with wireless. www.gbpppr.org