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.

SuperNotecard - Introducing SuperNotecard. SuperNotecard is an online writing tool that features virtual notecards to help arrange facts or scenes, track details, organize paragraphs, and clarify your composition process.

Clever - syncing between education applications for K-12 schools

Linked Ideas - A macOS/iOS apps to treat ideas as links of concepts.

Claroline - Claroline is a collaborative eLearning and eWorking platform.

Freeplane - Freeplane is a powerful and free software for building mind maps.