Dotnetrocks!!!
Dotnetrocks is a cool internet audio talk show for .Net developers. In DJ Style with cool musical effects, Carl Franklin and Richard Campbell explore various facets of the .Net framework and related cutting-edge technologies like AJAX, Silverlight, LINQ, Entity Framework, etc. with some of the most famous names in the technology world
Every episode also has a section called "Better know the framework" where you can learn a new aspect of the vast .Net framework.
Check it out at http://www.dotnetrocks.com
You can download the podcasts in different formats and take them with you on your mp3 player, iphone or Blackberry.
If you prefer videos , check out DNRTV http://www.dnrtv.com
Have fun exploring the .net framework with Carl and Richard!!!