Here's a quickie set of reference links for you. If you're looking for RSS feeds and podcasts from U.S. Government, FirstGov offers a couple of useful directories with links to both types of material.
+ U.S. Government RSS Library
Browsable by topics that include health, business and economics, and science.
+ Podcasts from the U.S. Government
At the moment, 11 podcasts are listed.
Meet Your Favorite Search Engine Watch Contributors
Many of SEW's leading expert contributors will be at ClickZ Live, the new online and digital marketing event kicking off in New York (March 31-April 3). Hear from the likes of: Thom Craver, Josh Braaten, Lisa Barone, Simon Heseltine, Josh McCoy, Lisa Raehsler, Greg Jarboe, Dan Cristo, Joseph Kerschbaum, John Gagnon, Eric Enge and more!