Webcasts are archived and distributed through Duke University's iTunes U site. Below you will find 5 different collections.
MacLearning webcast archives contain videos from recent webcasts all the way back to 2006. A wide range of topics are represented.
The iTunes U webcast collection consists of four webcasts providing an overview of iTunes U, information about integrating internal iTunes U sites, iTunes U in the iTunes Store, and introduces the (then) new iTunes U Public Site Manager.
The AcademiX 2009 and AcademiX 2010 collections hold videos of presentations made at those conferences.
The iTunes U Munich Conference collection contains seven case study presentations from iTunes U content providers.