Learn a language by reading whatever you like
#languages
Learn X in Y Minutes
See samples of different programming language and their syntax, written in those languages.
Indonesian in 7 days
Really well-made site with the basics of Indonesian Bahasa, including audio for pronunciation.
Codestyling Localization
Powerful-sounding plugin to help with the translation process of plugins. It plugs into wp-admin and then allows you to load up what needs translating from another plugin.