edX

edX is a massive open online course (MOOC) provider. It hosts online university-level courses in a wide range of disciplines to a worldwide student body, including some courses at no charge. It also conducts research into learning based on how people use its platform. EdX differs from other MOOC providers, such as Coursera and Udacity, in that it is a nonprofit organization and runs on open-source software.

License: We aim to make much of the edX course content available under more open license terms that will help create a vibrant ecosystem of contributors and further edX’s goal of making education accessible and affordable to the world. Certain reference documents, digital textbooks, articles and other information on the Site are used with the permission of third parties, and use of that information is subject to certain rules and conditions, which will be posted along with the information.
Website: edX.org