Hacker News on 25 August 2007

• New Book from O'Reilly: Programming Collective Intelligence
• 6 Easy Tips to Prevent Downtime
• Writing Hacks, Starting
• Matt Maroon: Demo Day B and Beyond
• First Coders at Work interview done
• 20 Free and Fresh Icon Sets
• Linus on git, central repositories, and commit access lists
• Scientists Induce Out-of-Body Sensation Using Virtual Reality Goggles
• Paypal guys are at it again with Slide
• Design Float: A digg/reddit for design articles