Patreon - Patreon enables fans to give ongoing support to their favorite creators.
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.
Spotify Artists - Spotify's site for artists
Clever - syncing between education applications for K-12 schools
Podfan - A membership platform for podcasts
Claroline - Claroline is a collaborative eLearning and eWorking platform.