Thanks for the pointers, folks. I'll add those to my regular web trawling.
...which is only half of why I asked the question. I'm thinking about when I get the website up. The show listings will be the focus, but I'd like to offer more content, such as news headlines via RSS and streaming audio like
Turn Up The Ska or
Radio Blog Club.
Web audio shows great potential. I plan on kludging the concept with our MySpace profile to help our local bands make a name for themselves. Or, if a band wants to do a show in your town, ask them for some MP3s for you to stream on your website, point people towards the stream, and find out what they think.
And that's not even getting into using tools like podcasting and BitTorrent to get those samples out there. There are dozens of ways to get your music to people.