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.

Addmefast - Building a website or network on Internet is no longer a hard task but promoting and marketing it is still a difficult task but not impossible.

Synonymful - Improve your vocabulary and communicate like a pro.

LikesPlanet - Get Facebook likes, Twitter Followers, YouTube Subscribers, Comments, and Shares.

Fluent - Fluent is a people-based marketing platform that uses real-time, one-to-one interaction to create custom audiences and serve personalized ads that drive performance at scale.

Linkcollider - Link Collider is a web-based service that is designed to grow your online business, social media networks, and personal blogs.