GitHub Visualizer - Enter user/repo and see the project visually
amphetype - Advanced typing practice program
Gource - Gource is a software version control visualization tool.
TypingMaster - Learn touch-typing technique, and improve/increase typing accuracy and speed.
Learn X in Y minutes - LearnXinYminutes isn’t a good way to learn your first programming language, but it’s a great way to...
Type Fu - Type Fu is an app that will teach you how to type fast. The right way. On Mac, Windows and Chrome OS.