CS183B - Startup Class - Stanford class taught by Sam Altman & guest speakers
Alcamy - Free, open self-learning platform. Learn & teach anything.
YC Startup Class - A live, one-hour class by Sam Altman on Platzi
EduDo - EduDo is a video discussion platform
Google Classroom - Learning management tool by Google
Sutle - Save and organize resources into a directed learning path.