I'm currently searching for ways to promote my music online and offline. I was submitting some stuff to this podcast site and I noticed that they have a performance poetry podcast. I figured that might be useful to some of you. Here's the link to their submission page:

http://blindingflashes.blogs.com/indie_feed/submission_guidelines/index.html

Some other useful sites:
http://www.last.fm/uploadmusic/artist/ - Last Fm is internet radio that makes playlists based on an individual's tastes.

http://music.podshow.com/ - By uploading tracks to podshow, you give a bunch of podcasters permission to play them

Ill add more links here if I find any other sites. Do you have any?

try some of the internet radio shows too.

*although there were some recent legal issues with internet radio and royalties.