Academic Earth is a relatively new site where scholars post video lectures from their academic courses. Whilst
MIT has been doing something similar for ages with their
Open Courseware project and Berkeley has had the
Structure and Interpretation of Computer Programs (SICP) lecture videos available for ages, I like that this has a really nice online interface that presents all of the available videos from many different sources in a fairly uniform fashion.
Anyhow, I have had a good look through the Computer Science lectures and found a number that are of interest to me including the aforementioned
SICP which I should finally try to watch and understand, as well as
Operating Systems and System Programming and
Machine Structures which are both relevant to my
AC2B module, and
Circuits and Electronics which isn't relevant to anything I teach or actively research but looks just darn interesting from a personal perspective.
Particularly nice is that lectures can be downloaded, as MP4, shared or embedded in lots of web 2.0 type ways. As revision materials I think that they could be very useful from an academic perspective.