MIT's OpenCourseWare is a great place to find lectures, transcripts, notes, outlines, and videos from MIT courses. While you can't get MIT credit or access the professors, through OpenCourseWare you can access the materials from two thousand courses. And as I've just learned through Open Culture, MIT OpenCourseWare can be accessed and downloaded on iPads, iPhones, and on the iPod Touch.
Applications for Education
MIT OpenCourseWare is a great resource for anyone that wants to learn something new on his or her own. As teachers we sometimes need a refresher on a particular topic or concept, OpenCourseWare courses could provide us with that refresher that we need. And if you have students that are looking to go beyond the content that you offer, don't be afraid to refer them to MIT OpenCourseWare.