Hacker News on 30 June 2008

• Programmer Competency Matrix
• 7 Reasons Why My Social Music Site Never Took Off
• Re: Why Nerds are Unpopular
• Want to Write a Compiler? Just Read These Two Papers
• OpenTable Seats 3M diners per month, generates serious revenue
• Howto: Make Money While Hacking On Open Source Projects
• Let’s Build a Compiler (1995)
• The Most Important Idea in Computer Science from Alan Kay
• Chris Anderson: Aware of All Statistical Traditions
• My Mixed Feelings about Ruby