Courses
MIT OpenCourseWare
A free and open collection of material from thousands of MIT courses, covering the entire MIT curriculum. Search for specific courses or browse by department.
MOOCs
Massive Open Online Courses (MOOCs) are free online courses available to everyone.
Coursera
Hundreds of free university courses in various disciplines.
EdX
Audit interactive online classes for free.
OpenLearn
Free courses from The Open University.