MarketplaceKit - MarketplaceKit is a platform for building different types of online marketplaces.
LearnUX.io - Video courses for UX/UI Designers
Cocorico - Cocorico is a state-of-the art Open Source solution to create an Airbnb or Blablacar for anything.
Alpe Audio - Audio courses to master new topics 'on the go'
JaJuMa-Market - All-In-One Multi-Vendor / Online Marketplace Solution. Various Business Models supported.
Knowable.fyi - Audio courses that inspire new abilities