American Freethought
Site: http://www.americanfreethought.com/wordpress/
Feed: http://www.americanfreethought.com/wordpress/?feed=podcast

Astronomy Cast
Site: http://www.astronomycast.com/
Feed: http://www.astronomycast.com/podcast.xml

The Atheist Experience (Occasionally contains explicit language)
Site: http://www.atheist-experience.com/
Feed: http://www.atheist-experience.com/podcast.php

Atheist News (Contains explicit language)
Site: http://www.atheistnews.org/
Feed: http://www.atheistnews.org/podcast/

Brian Dunning’s inFact
Site: http://skeptoid.com/infact
Feed: http://skeptoid.com/infact.xml

Chariots of Iron (Contains explicit language)
Site: http://www.chariotsofiron.com/
Feed: http://www.chariotsofiron.com/feed/podcast

Center Stage
Site: http://www.centerforinquiry.net/centerstage
Feed: http://feeds.feedburner.com/centerforinquiry/hHOP

A Christian and an Atheist
Site: http://www.achristianandanatheist.com/
Feed: http://achristianandanatheist.com/podcast_itunes.rss

Freethought Radio
Site: http://airamerica.com/freethoughtradio/
Feed: http://ffrf.libsyn.com/rss

The Good Atheist (Contains explicit language)
Site: http://www.thegoodatheist.net/
Feed: http://www.thegoodatheist.net/?feed=podcast

Humanist Network News
Site: http://www.americanhumanist.org/hnn/podcast/
Feed: http://feeds.feedburner.com/HNN_Podcast

The Infidel Guy Show
Site: http://www.infidelguy.com/
Feed: http://infidelguy.libsyn.org/rss

The Naked Scientist (The science is naked, not the scientist)
Site: http://www.thenakedscientists.com/
Feed: http://www.thenakedscientists.com/naked_scientists_podcast.xml

MonsterTalk
Site: http://www.skeptic.com/podcasts/monstertalk/
Feed: http://monstertalk.skeptic.com/rss

Mr. Deity (Humor)
Site: http://www.mrdeity.com/
Feed: http://www.mrdeity.com/deityrss.xml

The Non-Prophets (Contains explicit language)
Site: http://www.nonprophetsradio.com/
Feed: http://www.nonprophetsradio.com/nonprophets.xml

NOVA | PBS
Site: http://www.pbs.org/wgbh/nova/
Feed: http://www.pbs.org/wgbh/nova/rss/nova-podcast-it.xml

Point of Inquiry
Site: http://pointofinquiry.org/
Feed: http://pointofinquiry.libsyn.com/rss

QuackCast
Site: http://www.quackcast.com/
Feed: http://www.quackcast.com/epodcasts/files/rss.xml

Reasonable Doubts
Site: http://doubtreligion.blogspot.com/
Feed: http://feeds.feedburner.com/reasonabledoubts/Msxh

Secular Nation by Atheist Alliance International
Site: http://www.atheistalliance.org/Secular-Nation-Podcast.html
Feed: http://www.atheistalliance.org/podcast/podcast.php

Skepticality
Site: http://www.skepticality.com/
Feed: http://skepticality.libsyn.com/rss/

Skeptically Speaking
Site: http://www.skepticallyspeaking.com/
Feed: http://feeds.feedburner.com/SkepticallySpeaking

The Skeptics’ Guide 5X5
Site: http://www.theskepticsguide.org/
Feed: http://www.theskepticsguide.org/feed/rss.aspx?feed=5×5

The Skeptics’ Guide to the Universe
Site: http://www.theskepticsguide.org/
Feed: http://www.theskepticsguide.org/feed/rss.aspx?feed=sgu

Skeptoid by Brian Dunning
Site: http://skeptoid.com/
Feed: http://skeptoid.com/podcast.xml

This Week in Science
Site: http://www.twis.org/
Feed: http://feeds.twis.org/twis/science/

Weird Things (Humorous discussion with occasional explicit language)
Site: http://weirdthings.com/
Feed: http://weirdthings.com/feed/podcast/

With Good Reason
Site: http://www.withgoodreasonradio.org/
Feed: http://feeds2.feedburner.com/WithGoodReasonRadio

Scientific American
Site: http://www.scientificamerican.com/

• Scientific American – 60-Second Earth
  • Feed: http://www.scientificamerican.com/podcast/sciam_podcast_i_earth.xml
• Scientific American – 60-Second Psych
  • Feed: http://www.scientificamerican.com/podcast/sciam_podcast_i_psych.xml
• Scientific American – 60-Second Science
  • Feed: http://www.scientificamerican.com/podcast/sciam_podcast_i_d.xml
• Science Talk
  • Feed: http://www.scientificamerican.com/podcast/sciam_podcast_i.xml

Podcast receivers:

• iTunes – http://www.apple.com/itunes/
• Juice – http://juicereceiver.sourceforge.net/
• WinAmpFull – http://www.winamp.com/
• PodcastReady – http://www.podcastready.com/