1. Lynda (More Information)

2. Udemy (More Information)

3. Khan Academy (More Information)

4. Coursera (has free courses, But the Certification to get it, you must be paid first) (More Information)

5. Alison (More Information)

6. edX (More Information)

7. Futurelearn (More Information)

8. Udacity (this is paid Courses) (More Information)

9. Bloc (this is free courses) (More Information)

10. Codecademy (More Information)

11. Skillshare (first month for free) (More Information)

12. LinkedIn Learning (paid) (More Information)

13. Skill Success (30trial to access free) (More Information)

14. iTunesU Free Courses (More Information)

15. MIT OpenCourseWare (More Information)

16. Open Culture Online Courses (More Information)

17. Lifehack Fast Track Class (More Information)

18. Academic Earth (More Information)

19. Stanford University Free Online Courses (More Information)

20. Open Yale Courses (More Information)

21. UC Berkeley Class Central (More Information)

22. Carnegie Mellon Open Learning Initiative (More Information)

23. Code (More Information)

24. University of Oxford Podcasts (More Information)

25. TED-Ed (More Information)

26. LessonPaths (tell you general information about each Country and give you advice of your lifestyle, But not Website for Course) (More Information)

27. Memrise (More Information)

28. National Geographic Kids (National Geographic is another site that makes free online education applicable for younger users) (More Information)

29. Fun Brain (Great option for kids looking for free online education) (More Information)

30. Harvard Extension (More Information)

31. UC San Diego Podcast Lecture (More Information)

32. University of the People (More Information)

33. CodeHS (More Information)

34. Aquent Gymnasium (More Information)

35. Apple Developer Site (More Information)

36. Canvas Network (More Information)

37. Open Learning Initiative (More Information)

38. Open Edu (More Information)

39. General Assembly (More Information)

40. LearnSmart (More Information)