PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
OpenCart - A free shopping cart system. OpenCart is an open source PHP-based online e-commerce solution.s
Clever - syncing between education applications for K-12 schools
PayKickstart - PayKickstart is the ultimate shopping cart and affiliate management platform, empowering online Entrepreneurs and digital publishers with the tools to sell their products online.
Claroline - Claroline is a collaborative eLearning and eWorking platform.
Gumroad - An all-in-one solution to sell your work and grow your audience.