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.
Courseroot - Biggest online course database on the web
Clever - syncing between education applications for K-12 schools
Startup Stash - A curated directory of 400 resources & tools for startups
Claroline - Claroline is a collaborative eLearning and eWorking platform.
Alcamy - Free, open self-learning platform. Learn & teach anything.