Primer Rooms - Live, interactive experiences with kids around the world
Inkshares - Tinder for book ideas
Sanako - Sanako provides software tools for language teachers.
Makerlog - Makerlog is the dead-simple task log that helps you stay productive and ship faster.
DIY.org - Any kid anywhere can learn any skill.
Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.