Hacker News on 13 December 2013

• Tell HN: How we bootstrapped to the #1 rated mattress on Amazon.com
• Google Removes Vital Privacy Feature From Android, Claims Release Was Accidental
• Email Introduction Etiquette
• SteamOS: It's here
• 300ms tap delay removed on Chrome for Android
• Oculus VR raises $75M
• The Best Books I Read in 2013
• Uruguay's president José Mujica: no palace, no motorcade, no frills
• About PayPal's Node vs Java “fight”
• Vim.js - JavaScript port of Vim