Gumroad - An all-in-one solution to sell your work and grow your audience.
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Easy Digital Downloads - Easy Digital Downloads is a complete eCommerce solution for WordPress.
Clever - syncing between education applications for K-12 schools
Ko-fi - Ko-fi offers a friendly way for content creators to get paid for their work.
Claroline - Claroline is a collaborative eLearning and eWorking platform.