amphetype - Advanced typing practice program
TypingMaster - Learn touch-typing technique, and improve/increase typing accuracy and speed.
Type Fu - Type Fu is an app that will teach you how to type fast. The right way. On Mac, Windows and Chrome OS.
TypeLit.io - Improve your typing by practicing on classic books such as Alice in Wonderland, Frankenstein, and The Art of War -- or get a monthly subscription and import your own EPUB, PDF, and TXT files.
SpeedCoder - Online Typing Practice for Programmers
Mavis Beacon Teaches Typing - Develop and improve your typing skills.