I'm also getting into the podcast thing lately. Since I'm a sports junkie I seem to enjoy the ESPN podcast of the Mike and Mike show as well as the Colin Cowherd show The Herd which is available through the iPhone app Iheart Radio. Also terrific is the app called TuneIn Radio which allows me to listen live to WFAN in New York at any time which is terrific. There are literally hundreds of radio stations available to tap into through TuneIn Radio.
Since my father is a Alzheimer's victim I have found the Alzheimer's related podcasts also available through the iPhone podcast app to be helpful. I also have dialed into podcasts for a bunch of other medical related stuff such as migraine headaches and G.I. issues. All pretty incredible stuff and I feel as though I'm just scratching the surface.