Gboard - Google-powered keyboard with search, GIFs, emojis and more!
TypingMaster - Learn touch-typing technique, and improve/increase typing accuracy and speed.
Fleksy - Fleksy is the #1 private, white-label virtual keyboard SDK, enabling companies to create unimaginable products.
amphetype - Advanced typing practice program
AnySoftKeyboard - Android (f/w 1.5+) on-screen keyboard for multiple languages.
keybr - This website teaches touch typing via lessons that feature letters and spaces on the user's screen. During each lesson, a cursor highlights the letter or space that the user must type... read more.