It looks like you're new here. If you want to get involved, click one of these buttons!
Most of mine are listed too but nobody so far has mentioned:The Skeptics Guide To The Universe
Comments
History according to Bob
Pulp Gamer
Dragon's Landing
Geek Speak - Derk is a funny guy.
In addition to the ones mentioned, I would recommend:
In Our Time Great discussions from the BBC
Grammar Girl
Mr. Manners
Real Time with Bill Maher
Hardcore History
My History Can Beat Up Your Politics