Hacker News on 2 October 2012

• Racism at a gaming company
• Lockitron: Keyless entry using your phone
• Online Python Tutor: Learn programming by visualizing code execution
• The Sudden, Mysterious Exit Of A Quora Cofounder Has Silicon Valley Baffled
• Show HN: Meet your cardboard buddy.
• You are getting sleeeeeeepy ...
• Social Login Buttons Aren’t Worth It
• Keccak wins the SHA-3 competition
• Judge Posner decries "excessive" copyright and software patent protections
• Software on Steam