amphetype - Advanced typing practice program
Typing Core - Test your typing speed online for free. Get tips on how to improve your typing speed. Find answers to questions about typing.
TypingMaster - Learn touch-typing technique, and improve/increase typing accuracy and speed.
10FastFingers - 10FastFingers is one of the effective typing speed checking tools that offer you a chance to enhance your typing speed in just a couple of days.
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.