coursera
https://www.youtube.com/user/coursera
https://www.coursera.org/
https://www.facebook.com/Coursera
https://twitter.com/coursera
https://plus.google.com/u/0/113764882365007097359/about
https://plus.google.com/+Coursera/posts
http://blog.coursera.org/
http://tech.coursera.org/
page revision: 4, last edited: 03 Jul 2014 08:02