Overall Comparison : Comparing the MOOC's

	PROS	CONS
EdX	Quality content Choose subject per university Preview of the course available Verified certificates Diversified subjects	Lecturers with an accent can be hard to  follow specially for non-native English  speakers Courses offering is still limited Technical glitches affecting learning  experience
Coursera	High number of courses Courses available in foreign languages Selection of courses with multiple  criteria Mentoring, employment support   Proctored exams	Courses sometimes are rescheduled in the  last moment Additional fees Peer grading is difficult sometimes
Udacity	Courses difficulty per level Able to sign with Twitter and Facebook Interactive tutorials	Not much information regarding the course  itself Limited content Computer science dominated courses
Khan Academy	Broader content Knowledge map feature Sign with Facebook and Google Big video library Coaching Interactive lectures with comments from  students Tutorial on how to use the site	Not all courses have descriptions Video lecture are hosted on Youtube Some lectures lack quality