FWIW I started listening to a lot of free podcasts from Itunes about 4 months ago. I just do an hr on the spin bike and listen to a bunch of interviews, then at lunch and when I stretch sometimes. Amazing how it adds up.
King World news
Follow The Money (FTM)
Chris Martenson - Featured voices
Gold Seek Radio
Mises Stuff (more deep thinking econ stuff when I am in the mood)