Startup Stash - A curated directory of 400 resources & tools for startups

Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

Startup Buffer - Startup Buffer is a premium startup directory for emerging startups all around the world.

Eduflow - Digital learning that actually teaches students something

Content Marketing Stack - A curated directory of content marketing resources

Backchannel Chat - Backchannel Chat is best in class discussion tool that is intended for teachers to streamline their class activities.