Description: Primarily a ranking system of online colleges. It does contain a tool that lets you explore over 10,000 free open courses and interactive resources from top universities around the world. I am skeptical of this database due to its lack of recognizable affiliations and the fact that it contains a ranking system of for-profit online universities. What are their motives for containing certain resources?
Resource Note: Maintains a database of over 10,000 free online classes.
Subject / Curriculum Note: Most major disciplines are recommended.