Hacker News on 2 May 2007

• Digg shuts down user submissions after every story on the front page is the HD-DVD key
• Michael Arrington argues silverlight is the future of the web
• Great hand-drawn map of social network world
• The $25,000,000,000 Eigenvector: The Linear Algebra behind Google [pdf]
• New Limits on Patents
• Digg Surrenders to Mob
• The Mid Life Entrepreneur Crisis
• We want a developer to come to YC with us
• Business 2.0 Doesn't Do Backups, Lost Entire June Edition
• Step Outside Your Own Head (includes insights into DHH, Gmail, and Quicksilver)