Hacker News on 25 September 2011

• Logging out of Facbook is not enough
• How to Force Facebook into Handing Over their Secret Tracking Data
• Facebook Disconnect
• Stanford's online Machine Learning class now open for enrollment
• What I learned on a round-the-world yacht race
• How Quake (the videogame) changed my life forever.
• Why Facebook's 'Frictionless Sharing' violates HTTP
• "When I design software, I really try hard to make it simple."
• Manufacturing "A Minimal Pen" in China, failures and successes
• Enrollment for Stanford's online DB class now open