Joe OpenCourseWare is a program in which real courses of MIT are filmed and the videos are hosted online. The initiative is amazing. Thoses classes look most interesting. I just watched #6.00. Fascinating!
Xsever I've seen these before. You can also look up the MIT channel on Youtube. They have a lot of lectures posted.
BashLogic some links on the subject from my bookmark collections .. http://ecorner.stanford.edu/podcasts.html http://www.cheat-sheets.org/ http://www.mediacollege.com/ http://ocw.mit.edu/courses/comparative-media-studies/ http://ocw.mit.edu/courses/media-arts-and-sciences/ http://ocw.mit.edu/index.htm http://webcast.berkeley.edu/ http://en.wikiversity.org/wiki/Wikiversity:Browse http://en.wikibooks.org/wiki/Main_Page http://ocw.nd.edu/ http://www.cs.washington.edu/education/course-webs.html http://sofia.fhda.edu/gallery/ http://oli.web.cmu.edu/openlearning/ http://ocw.jhsph.edu/topics.cfm http://www.archive.org/details/education http://ocw.tufts.edu/CourseList http://ocw.usu.edu/front-page/courselist http://cnx.org/content/ http://openlearn.open.ac.uk/course/index.php http://globetrotter.berkeley.edu/conversations/ http://graduateschool.paristech.org/?langue=EN http://www.researchchannel.org/prog/ http://mitworld.mit.edu/ http://www.princeton.edu/WebMedia/lectures/ http://ci.columbia.edu/ci/ http://www.law.duke.edu/webcast/index.html http://www.hno.harvard.edu/multimedia/video_mm.html http://www.law.georgetown.edu/sci/sls.html#Presentations http://athome.harvard.edu/archive/archive.asp http://www.ksg.harvard.edu/multimedia/videoarchive.html http://www.law.harvard.edu/news/webcasts/ http://webcast.oii.ox.ac.uk/?view=Default http://www.princeton.edu/WebMedia/lectures/ http://www.gsb.stanford.edu/news/audiovideo.html http://shc.stanford.edu/events/archive.htm http://www.oid.ucla.edu/Webcast/ http://www.yale.edu/yale300/democracy/mediatranscripts.htm http://yaleglobal.yale.edu/video.jsp
mesa177 The sideline "Lecture Notes" give an insight about the video contents and are quite interesting. I especially liked the "Underactuated Robotics" part of the "Electrical Engineering and Computer Science" video lectures (PS: J4D you should really check it out).