A short time ago Apple began offering iTunes U. Here are two excerpts about it:
iTunes U has arrived, giving higher education institutions an ingenious way to get audio and video content out to their students. Presentations, performances, lectures, demonstrations, debates, tours, archival footage â€” school is about to become even more inspiring.
already, more than half of the nationâ€™s top 500 schools use it to distribute their digital content to students â€” or to the world. Any school can open all or part of its site to the public, from alumni to parents to anyone.
Sounds interesting to me.