Some desultory browsing of iTunes turned up the James A Thomas Lecture delivered by Tomiko Brown-Nagin, University of Virginia Law School, at the Yale Law School last November. It is entitled "Re-envisioning the Civil Rights Movement: Courts, Communities and Legal Liberalism" and takes up civil rights lawyers outside the NAACP, such as the members of Atlanta's Gate City Bar Association. (Try "Yale Law" on iTunesU .)
Image Credit: Gate City Bar Association
Another find was five lectures by Isaiah Berlin, posted by Oxford University in honor of his centenary. Berlin's introduction to and reading of Turgenev's "A Fire at Sea," from 1957, was, for me at least, riveting. (Try "Isaiah Berlin Centenary.")
Image credit: Isaiah Berlin Virtual Library