Hacker News on 9 March 2011

• Sleep is more important than food
• A tale of two programmers
• Xcode now costs US$ 4.99
• A New Name for Stack Overflow (with surprise ending)
• Y Combinator's Graham Doesn't See "Bubble" in Technology
• Saved 10 billion DNS queries per month by disabling DNS Prefetching
• New in Gmail Labs: Smart Labels
• North Korea's Digital Underground
• WebOS will be on 'every HP PC' shipping next year, says CEO
• Shortest SEO Guide