X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.

Teachable - Create and sell beautiful online courses with the platform used by the best online entrepreneurs to sell $100m+ to over 4 million students worldwide.

pump.io - A stream server that does most of what people really want from a social network.

Clever - syncing between education applications for K-12 schools

Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.

Claroline - Claroline is a collaborative eLearning and eWorking platform.