Hacker News on 18 December 2011

• Whitehouse.gov petition to veto SOPA
• Reddit admin: "If SOPA passes it would almost certainly mean the end of reddit"
• Where's Waldo?
• SOPA creator received half a million dollars from the TV/Film/Music lobby
• Why have CPUs been limited in frequency to around 3.5Ghz for so many years?
• The switch: Python to Node.js
• Why is one loop slower than 2 in C?
• Sinatra::Synchrony - Evented, fast, concurrent Ruby web apps with no callbacks
• Assessing a Company: Questions you need to ask in an Interview
• Sleep Deficit: The Performance Killer