Widening your audience is important when you are using podcasting to market your business.  So, what are some ways to broaden your listener base?
Podcast Visibility

iTunes
Yahoo! Podcasts
Odeo
Juice

Podcast Networking

Yahoo! Podcasters Group
San Francisco (or other community) Podcast Meetups
Collaborative Podcast Efforts

Great ContentIf your show fills a need AND is entertaining, you’ll have no problem finding an audience.