NPR - Planet Money
Podcast and blog on all things economic. Easy to understand and very well done.
You can get an app for free in the app store so you can listen on your phone.
Freakonmics - radio
Podcast and blog from authors of Freakonmics.
Focus in on a specific good or service or sector of culture and society and use economics to explain how and why it works.
Slate Political Gabfest
A podcast that is a weekly discussion of major stories and issues in politics. While it has a liberal slant it is well done and considers multiple perspectives.
A blog about the U.S. Supreme Court. It covers all the cases on the Court's docket, decisions and petitions.
The newsite that covers the Congress of the United States. Provides neutral coverage along with excellent opinnion pieces from a variety of perspectives.