Here's a collection of podcasts related to rationality, critical thinking, scepticism, atheism, etc. It's not exhaustive; these are the ones I listen to when I have time.
Skepticality - the original sceptical podcast, with Derek and Swoopy, and now the official podcast of Skeptic Magazine
Point of Inquiry - the podcast of the Center for Inquiry, hosted by D. J. Grothe
Skeptoid - Brian Dunning's podcast book is also available at Podiobooks.com (for those who want an easy way to listen from the beginning)
Skeptics' Guide to the Universe - Dr Steven Novella plus a regular panel (associated with JREF - James Randi Educational Foundation)
Freethought Radio - Dan Barker & Annie Laurie Gaylor from FFRF (Freedom From Religion Foundation)
Bad Science - Dr Ben Goldacre (who writes for the Guardian) has an occasional podcast related to his well-known blog
Atheists Talk - Minnesota Atheists' new podcast
Quick Hitts - Dave Hitt is often controversial, but always interesting
If you have any other suggestions for podcast listening in this field, feel free to post them in the comments.
Are religious people a bit thick?
11 minutes ago