Hacker News on 15 March 2011

• Music Theory for Beginners
• Dudes, this is so not REST
• Your Username Will Now Serve as Your Password and Your Password as Your Username
• iOS Libraries
• Apple's Role in Japan during the Tohoku Earthquake
• Parsing: the solved problem that isn't
• JRuby 1.6.0 Released: Now with Ruby 1.9.2 Support
• Why no looting in Japan?
• Letter heads, by Firefox labs
• Why is TeX still used? What are some good, modern alternatives?