Playlists of full lecture series for dozens of courses.

Departments with content here include:
Astronomy
Biomedical Engineering
Chemistry
Classics
Ecology and Evolutionary Biology
Economics
English
History
History of Art
Italian Language and Literature
Molecular, Cellular and Developmental Biology
Music
Philosophy
Physics
Political Science
Psychology
Religious Studies

See also the Open Yale Courses web site, which opens with:

From the Yale web site:

"Open Yale Courses provides free and open access to a selection of introductory courses taught by distinguished teachers and scholars at Yale University. The aim of the project is to expand access to educational materials for all who wish to learn."

Course areas include astronomy, biology, chemistry, economics, English, history, music, philosophy, physics, political science, psychology and religious studies.

See also:
Yale Courses YouTube Channel

An impressive resource. A complete online guide to podcasting - learn all about it - plus tools, hardware, software and more. Aimed at educators; handy for anyone wanting to learn how to podcast.