1- www.edx.org 2- www.coursera.org 3- www.udacity.com 4- www.mruniversity.com 5- www.Lynda.com 6- www.venture-lab.org 7- www.education.10gen.com 8- www.openhpi.de 9- www.ocw.mit.edu 10- www.khanacademy.org 11- www.oli.cmu.edu 12- www.oyc.yale.edu 13- www.webcast.berkeley.edu 14- www.openclassroom.stanford.edu/MainFolder/HomePage.php 15- www.see.stanford.edu 16- www.ck12.org 17- www.udemy.com 18- www.skillshare.com 19- www.codecademy.com 20- www.p2pu.org 21- www.ed.ted.com 22- www.myopencourses.com 23- www.myopencampus.in 24- www.nptel.iitm.ac.in 25- www.saylor.org 26- www.nalandau.com 27- www.academicearth.org 28- www.youtube.com/education 29- www.phodphad.com 30- www.learntobe.org 31- www.floqq.com