I am looking at ways to distribute mp3 files as part of some invesigation for a radio producer.   They have a bunch of professionally produced radio programs and I need to store, share and distribute these files.  I came across Soundcloud which seems to provide an easy way to manage these audio tracks.

SoundCloud: The Tour from SoundCloud on Vimeo.

I really like the drop box where web subscribers can send audiofiles for you to listen to.  Like it.

The only issue is that I am not in complete control.  I could host the audio content and stream it pretty easily but there is a potential network cost if lots of streaming takes place!!

More thought required but I like the service.