SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.
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.
edX - Best Courses. Top Institutions. Learn anytime, anywhere.
Clever - syncing between education applications for K-12 schools
Geocities Site Builder - Share your abomination with the world
Claroline - Claroline is a collaborative eLearning and eWorking platform.