Reformed Theological Seminary has recently placed some classes on iTunes U. If you are not familiar with iTunes U it is an effort to provide a delivery forum for education content - institution to student...mostly for free. Here is the description for Apple.

Tunes 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 — school is about to become even more inspiring.

RTS has several lectures in OT, NT, Theology, and Church History available online for the wonderful price of $0.00. Can't beat that...

(HT - Justin Taylor)