Y Hacker News new | ask | show | jobs

user: joelvh created: 2010-11-10 karma: 106 Blog: http://joelvh.com Twitter: @joelvh LinkedIn: http://www.linkedin.com/in/joelvh submissions: 0 points | 0 comments How to Weather the Ups and Downs of the Startup World: Spam Comments 2 points | 0 comments 0 points | 0 comments How to Rid the World of "New User" Email Activation Links 1 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments Using WolframAlpha to Hack Text CAPTCHA 104 points | 46 comments