Hacker News on 18 April 2009

• IE 6 Update
• What's up, bot? Google tries new Captcha method
• Bruce Sterling: Poor folk love their cellphones
• Tarsnap and the prepaid billing model
• Damien Katz: CouchDB in the Browser
• Ask YC: Would HN readers be interested in a HN events site?
• Artificial Intelligence: A Modern Approach
• Things that do not make sense (2005)
• A look inside the Y Combinator interview room.
• GitHub Developer site