GitHub Polls - Polls for GitHub issues and readme
Talent LMS - A super-easy, cloud LMS to train your employees, partners, customers or students.
Octotree - Github on steroids
edX - Best Courses. Top Institutions. Learn anytime, anywhere.
Neat.run - Neat puts SaaS notifications in your menu bar. Streamline your code review and ship with ease. Preview, triage, and jump to issues in one click or keystroke.
Treehouse - Treehouse is an award-winning online platform that teaches people how to code.