i recently discovered the "podcast" and am totally hooked on The Naked Scientists. Its out of Cambridge Univesity and covers all kind of new stuff and old stuff in..you guessed it, science. I like that they are British, and talk in the Britishy way. I've heard stuff from microbiology to astronomy, to chemistry with household stuff. Good times for the curious, or for those who like to hear English people say the word vitamin (with soft 'i'). I also enjoy a radio show called Coast to Coast Am (with George Noory). Its a bit "out there". Talk about aliens, and some very far out "alternate" concepts to history and "science". I listen for fun, not to fuel my paranoia. Anyone else got something good to listen to that I might be missing? Right now I'm listening to Best of Natural History by the BBC (gotta love those Brits).