OpenBoard - The OpenBoard software is an interactive white board software.
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.
Conceptboard - Instant Whiteboards for Teams & Projects
Clever - syncing between education applications for K-12 schools
IDroo - A shared whiteboard for use by multiple Skype-users simultaneously. Features
Claroline - Claroline is a collaborative eLearning and eWorking platform.