Hacker News on 30 July 2007

• What ideas have you implemented that have failed, and why?
• Deploying on EC2 + S3
• Courage to Change Direction, Letters to Graduating YC Companies, Letter 1
• What will come after web apps and social sites?
• How Top Bloggers Earn Money
• Coding Horror: The Coming Software Patent Apocalypse
• Three years with Ruby on Rails
• I Can Has Cheezburger - Bloggers Bring in the Big Bucks
• Arrington: "As best we can tell" twitter raised 5 on 20 valuation
• 7 Tips for viral marketing