Hacker News on 31 October 2009

• Homepage of Berkshire Hathaway, 17th biggest company in the world
• What's Going on at the Bay Bridge
• Dustin Curtis's new web app
• Google Redefines Disruption: The “Less Than Free” Business Model
• Google's Robots.txt Updated for Halloween (scroll to the end)
• The Shocking State of Contemporary "Mathematics"
• You Aren't Average
• Hacking with Style: TrueType VT220 Font
• Comfort Noise
• French Ideal of Bicycle-Sharing Meets Reality