People are just waking up to the possibility of podcasts – and the way in which you can tell your stories to whole new audiences. (I’ll have some announcements on that score soonish…) But I’ve just been listening to the Australian environmental and forest history. It covered a lot of ground with which I’m familiar – it is about first/second-year OU level, but nicely done and a great introduction if you haven’t looked at the subject before.
Some of the others also look interesting – just about a complete course in the subject.