Hacker News on 12 May 2009

• What lies beneath New York's rivers
• Pirate Bay Founder Devises DDo$ Attack
• How David Beats Goliath
• Free Programming Books
• What Makes Us Happy?
• How I Spent A Million Bucks And Ended Up With These Two Chairs.
• Google Squared
• Balsamiq hires 2nd empoyee
• The Programming Language with the Happiest Users
• Norwegian ISP: dig your own fiber trench, save $400