The following sites provide radio or talk shows in the Ogg Vorbis format:
Note: The 2GuysTalking Podcast Network is a sponsor of the OggWatch™ project, as well as Twisted Lincoln, Inc.™
Dr. Bill Bailey provides musings on computers and technology, as well as misc topics.
A liberatarian oriented online radio show about politics.
The Atheist Experience:
The Atheist Experience is a show intended to promote secular views, but geared at a non-atheist audience.