Many people may not know that MIT has initiated OpenCourseWare, an initiative to share all of their educational resources with the public. This generous act is intended (in classical MIT style) to make knowledge free, open, and available. It's a great resource for people looking to improve their knowledge of our world. OpenCourseWare should prove exceptionally beneficial to those who may not be able to afford the quality of education offered at a school like MIT. Here's a link to all currently available courses. It is expected that by the end of the year every course offered at MIT will be available on the OpenCourseWare site, including lecture notes, homework assignments, and exams. OpenCourseWare is not offered to replace collegiate education, but rather to spread knowledge freely."