You know how a lot of radio stations have a slogan like: "More Music, Less Talk"? What if there was an FM station that was "All Music, No Talk"?
There is, and during the summer, it just plays songs. All the time. One after another. No announcing of titles, no station ids, no PSAs, no emergency broadcast system, and of course, no ads. There's nobody there, so there's NO talk at all.
It's a good station, and if you live in Mt. View, CA or Los Altos, parts of Palo Alto, Sunnyvale and Cupertino, you might be able to listen to it: 87.9FM - KSFH. It's run by Saint Francis High School. I think it has a transmitter made of a Pringle's can and an old umbrella, however.
Anyways, as I listen to it, I think how easy it is for well-intentioned socialists like the people at Craigslist to destroy the classifieds business, simply by doing (most) everything for free. Google uses this to their advantage as well.
A radio station has limited reach (like 5 miles in this case), but on the Internet, you can disintermediate world-wide.