ITunesU


 * http://www.apple.com/education/itunes-u/


 * Linear Algebra (MIT)
 * Multi-variable calculus (MIT)
 * Statistics (Harvard)
 * Astrobiology and Space exploration (Stanford)
 * Turing Centenary Lectures (Oxford)

Can be used audio only: (see http://www.sqlservercentral.com/Forums/FindPost1789009.aspx )