Podcasts

Technology:
Hypercritical
This Week in Google
Hacker Medley
Stack Exchange Podcast
FLOSS Weekly
Linux Outlaws
http://www.rce-cast.com/Podcast/
A Minute with Brendan
Build and Analyze
The Talk Show
yayQuery
The Command Line Podcast
Security Now
Pragmatic Podcasts
This Week in Fedora
This Week in Debian
The Changelog
JSConf Live
DevOps Cafe Podcast
Linux Reality
Tech Luminaries (defunct)
inSCIght - The Scientific Computing Podcast

Misc:
Freakonomics Radio
TEDTalks

Making Comics:
The Webcomic Workshop
Webcomics Weekly

Music:
Rathole Radio