I like to listen podcast too.

I use to listen podcast in english and in my native language spanish.

In english I use to listen to Steve Pavlina:

http://www.stevepavlina.com/audio/

 Although some of his ideas are pretty extravagant to me.

I dont know if the spanish podcast are of interest... anyway I use to listen www.tierrafirmertm.org and www.elclubdejazz.com/envivo.