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.

Airfordable - Payment plans for flights before your departure.

LanguageBeast.com - Study English synonyms and antonyms to enrich your vocabulary

Stride Travel - Search and reviews for tours & adventure packages

Babble - A more personalized social network

#PriceMyTrip by Vamo - Plan a complex trip with one simple tweet