Here is my list of infosec podcasts I listen to or have listened to now and then.

Podcasts that I listen to regularly

(ordered by preference)

1.) Risky Business @riskybusiness

2.) Pauldotcom Security Weekly @pauldotcom

3.) Social-Engineer Podcast by @humanhacker @dave_rel1k @backtracklinux et al

4.) Eurotrash Security Podcast @eurotrashsec by @chrisjohnriley @wimremes @daleapearson et al

5.) Aluc Radio of course by @thealuc @macode and @Jaysonstreet

6.) Tenable Security Podcast by @tenablescurity

7.) SecuraBit by @SecuraBit

8.) The Southern Fried Security Podcast  @SFSPodcast

Podcasts that I have at least checked out once in a while or still listen to eventually

(in no special order of preference)

1.) Exotic Liability (unfortunately no new podcast EPs for a long while)

2.) Hacker News Network (video podcast)

3.) Infosec Daily (ISDPodcast) - I gave up trying to keep up with them. Those guys are just crazy. :)

5.) The Digital Underground Podcast

6.) OWASP security podcast

7.) The Silver Bullet Security Podcast

8.) Security Now! (that was the first infosec podcast I listened to)

9.) Security Justice

10.) The Cyber Jungle (although I hate them for that "workplace watcher" commercial - it's just plain evil)

11.) CSOonline.com Security Insights

12.) Cisco TAC Security Podcast Series

13.) CERT's Podcast Series: Security For Business Leaders

14.) Beyond the Perimeter