Educational Testing: Online Courses (Free)

Coursera partners with top universities to offer courses online for anyone to take, for free. Sign up is required. 

edX is a not-for-profit enterprise of its founding partners Harvard University and MIT that features learning designed specifically for interactive study via the web. The site offers more than 3,600 free courses, of varying lengths, from a large number of leading universities. Sign up is required.

Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. Subject areas covered include math, science, computing, history, art history, economics, and more, including K-14 and test preparation (SAT, Praxis, LSAT) content.

Learning Express Library offers practice tests, exercises, skill-building courses, and eBooks. Requires sign up.

MIT OpenCourseWare (OCW) is a web-based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent MIT activity. More than 2,600 courses are available.

Stanford University’s online learning catalog of credit-bearing, professional, and free and open content developed by Stanford faculty across the university.

Udemy is an online learning and teaching marketplace with over 185,000 course offerings.