http://open.umich.edu/
http://ocw.mit.edu/
http://ocw.uci.edu/
http://ocw.usu.edu/
http://ocw.tufts.edu/
http://ocw.jhsph.edu/
http://ocw.tudelft.nl/
http://webcast.berkeley.edu/
http://www.ocw.titech.ac.jp/index.php?lang=EN
http://online.stanford.edu/courses
http://ocw.umb.edu/
https://online.duke.edu/about/moocs/
http://oli.cmu.edu/
http://ocw.usq.edu.au/
http://ocw.usask.ca/
http://oyc.yale.edu/
https://www.youtube.com/user/MIT/videos
https://www.open2study.com/
https://www.edx.org/
https://www.coursera.org/
http://www.extension.harvard.edu/
http://www.open.edu/openlearn/
http://www.open.edu/openlearn/free-courses
http://oerconsortium.org/discipline-specific/
http://www.oeconsortium.org/courses/
http://als.csuprojects.org/free_online_courses
http://ocw.unesco-ihe.org/
http://openhighschoolcourses.org/
http://www.cybrary.it/

https://openlibrary.org/


http://www.codecademy.com/
https://github.com/vhf/free-programming-books/blob/master/free-programming-books.md
http://collegeopentextbooks.org/

http://www.pythonlearn.com/
https://online.dr-chuck.com/
http://php-intro.com/