Tumblr for your social favs
Hoblee is the place where you can see all the things that you mark as favourite in all your social networks.
Quora meets TakeLessons for sharing knowledge with the world.
Teachernow is the place to meet and join learning communities and share your knowledge with the world. We democratize knowledge by providing a platform where students and teachers can interact outside of a regular “paid lesson” environment. The main purpose is ...