[Win] A family of Windows applications and web services enabling computer users to improve their typing efficiency. Also offers free typing tests. http://www.typingmaster.com/
[Win - Unix] Free tutor adaptable to multiple languages (currently English, German and Spanish) and keyboards (currently Spanish and US qwerty and Dvorak). Also known as gtypist. http://www.gnu.org/software/gtypist/
Typing tutor and 10-key software for individuals, schools, and corporations. Download and evaluate typing software that builds communication skills. http://www.qwerty.com
A utility that lets you type accents and special characters into any Windows program by clicking on a button on a floating menu bar. http://www.frkeys.com/
[Win] Auto-adapts to the learner, ensuring keyboard mastery in two to six hours of practice; also auto-adapts to keyboard language and layout. Online ordering; immediate download. http://www.turnquist.org/
[Win-Mac] Learn touch typing skills. Features introductory quiz to customize package, full support for both QWERTY and Dvorak keyboards and animated demonstrations. http://www.tenthumbstypingtutor.com
[Win - Mac] Straightforward typing tutor that uses the interface you already know on both Mac and Windows. Contains fun and challenging game, ParaTyper. http://macinmind.com/MasterKey/