One of them is right here: The MedicCast. Go check it out.
Now.
And this is an email I sent in a couple of weeks ago, I hope you guys might be able to get something out of it:
http://www.mediccast.com/blog/2009/07/24/tips-for-emt-and-paramedic-online-medical-control-consults/
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I used to think podcasts was some kind on new, wanky type of stuff for those seriously cool type of people.
Well, now I seem to be one of those people, and love it. Have a browse, have a listen, have a bit of patience and learn something.