Massive Open Online Courses for Free

Most of the following resources cover a wide array of topics and are of course free!

ResourceDescription
MOOC ListAggregates the search indexes across the big-name MOOC websites like Coursera, EdX, etc. so that you don't have to search each of those websites separately
Class CentralQuite similar to MOOC List
A List of Web Dev CoursesThis list is limited to web development courses, but its strength is that it includes websites that are small but great rather than the aggregators that search just among large MOOC websites
List of University Courses for Learning Computer ScienceAn extensive list of computer science courses, including sometimes just a syllabus when there are no videos for a class
YouTubeIt turns out YouTube is home to many recordings of online classes, and might well be the best starting point for online class videos
Open Learning InitiativeA supplementary MOOC website that isn't included in MOOC List or Class Central
Open Yale CoursesAnother supplementary MOOC website that isn't included in MOOC List or Class Central