Numito - Word and number puzzles game, similar to Countdown GameShow
Folloh - It brings all the news you want from around the web
Wikids - An encyclopedia that talks to your kids
LetterHunt - LetterHunt connects you to 10,000+ niche, active newsletter writers to promote your product.
Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
Startup Quote - Awesome founders provide wisdom about making things