Free online courses
Có quizz, exam, reading assignment như học thật. Đa số có certificate.
Nguồn: Coursera (Stanford), MITx (MIT), Udacity.
Coursera: We offer high quality courses from the top universities, for free to everyone. We currently host courses from Princeton University, Stanford University, University of California, Berkeley, University of Michigan-Ann Arbor, and University of Pennsylvania. We are changing the face of education globally, and we invite you to join us.
Updated May 3: http://www.edxonline.org/