Courseroot - Biggest online course database on the web
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Learn Anything - Search Interactive Maps to Learn Anything
Clever - syncing between education applications for K-12 schools
Stacks - A bookshelf for your online courses
Claroline - Claroline is a collaborative eLearning and eWorking platform.