So now you've downloaded and installed iPodder but the selection of podcasts is a bit sparse, huh? Here's the first place to look for more podcasts:
PodcastAlley.com -- Podcast Directory : The place to find Podcasts
Also, for those of you--like me--who DON'T have an iPod, you can still download the MP3 files and listen to them on your desktop, laptop, etc.
Next thing to figure out: How do you take Real Audio streams from NPR or This American Life and turn them into podcast streams?