I just saw this Drupal Case Study about Sandusky Radio: 11 Stations, 1 CMS on Drupal.org and thought you all might be interested. What I find especially interesting is this:
The center of what a radio station site does is the ability to display what’s On Air now and what is next on the playlist. Bluespark tightly integrated each Drupal site with the radio station’s existing playlist system to pull that information in as well as allow content managers to set up show schedules.
It would be nice if the folks at Bluespark would contribute some code to the station module or at least share the code they use somewhere so someone else could benefit from it as well.