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David Heinemeier Hansson created the Ruby on Rails open-source web framework in 2003. David is also the founder and CTO of Basecamp, a project management tool that's been used by more than 15 million people. In addition, David is the best-selling author of REWORK, a book about starting and running businesses a better way. David has agreed to take some time to answer some of your questions.

Ask as many questions as you'd like, but please, one per comment. (And feel free to also leave your suggestions for who Slashdot should interview next.) We'll pick the very best questions -- and forward them on to David Heinemeier Hansson himself.

theodp writes "Your brain teaser prowess may win you a job at Google, but the folks at 37signals don't hire programmers based on puzzles, API quizzes, math riddles, or other parlor tricks. 'The only reliable gauge I've found for future programmer success,' explains 37signals' David Heinemeier Hansson, 'is looking at real code they've written, talking through bigger picture issues, and, if all that is swell, trying them out for size.'" Those of you who have hired employees: have you seen correlation between interview puzzle success and job competency? How should an interviewee best handle these questions?

Eagle5596 writes "It seems that there can be a serious problem with Google's Web Accelerator, and I'm not talking about the privacy concerns. Evidently some people have been finding that due to the prefetching of pages their accounts and data are being deleted."

Espectr0 writes "A software tool launched by Google on Wednesday that speeds up the process of downloading Web sites (covered recently on Slashdot) has caused some users to worry about their privacy. A ZDNet article discusses problems that users have been experiencing with the information that is cached by the software. On a Google Labs discussion group, one user said that 'I went to the Futuremark forums and noticed that I'm logged in as someone I don't know...'" Commentary also available on Signal vs. Noise and BlogNewsChannel.

theodp writes "Wired picks up on the observation made by Jason Fried that more and more sites and tools are launching and remaining in 'beta' mode. Prominent sites like Google News, A9, Froogle, Friendster, Tribe, and Orkut all sport 'Beta' disclaimers. Is this to get users to do the testing, a subtle way of saying 'don't expect support', or simply a marketing ploy to generate buzz by making users feel 'exclusive'?"