The Atheist Experience:5/5: 1.5 hr; Call in public-access TV show with a different topic each week related to atheism. Articulate, insightful hosts. Must see!
Point of Inquiry: 4.5/5: 30 min; The official podcast of the Center For Inquiry. Host D.J. Grothe has a different guest every show.
Skeptoid:4/5: 5-10 min; Very short series that gets right to the point and exposes different supernatural claims for what they are.
Skepticality:3.5/5: 50 min; The official podcast of Skeptic Magazine. A solid program that covers a variety of subjects.
The Nonprophets: 3.5/5: 1.5 hr; Great banter and conversation between hosts, but content sometimes comes across as unprepared.
Dogma Free America: 3/5: 1 hr; 1/2 International news, 1/2 Interview. Great news stories from around the world, very professional, very funny
Freethought Radio:3/5: 45 min; "Irreverant views, news, and interviews." Hosted by the outstanding Freedom From Religion Foundation. Good interviews, but content can be a little dry and slow at times.
Humanist Network News:3/5: 60 min; A monthly one-hour talk show created by the Institute for Humanist Studies. HNN is the official podcast of the American Humanist Association.
Infidel Guy: 2.5/5: 60 min; Decent show hosted by Reginald Finley, a pioneer in atheist podcasting. Has a variety of good guests on to discuss a variety of themes.