Khan Academy - Khan Academy offers online tools to help students learn about a variety of important school subjects. Tools include videos, practice exercises, and materials for instructors. Read more about Khan Academy.
Learn Anything - Search Interactive Maps to Learn Anything
Coursera - Build skills with courses, certificates, and degrees online from world-class universities and companies
Mindspace - Free learning platform with quick and simple crash courses.
Udemy - Online Courses - Learn Anything, On Your Schedule
Workshop - Learn new skills simply by doing them.