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.

Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.

Clever - syncing between education applications for K-12 schools

ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...

Claroline - Claroline is a collaborative eLearning and eWorking platform.

LightShot - The fastest way to take a customizable screenshot.