About time someone put a blog out there for you Active worlds Citizens about how to create your own free and legal radio station online. Radionomy offers a free radio account that is compatible with the media command in active worlds. Go to Radionomy.com set up an account , set the radio up and then search for you station on Radionomy. When on your station page they will have a play in external player link, copy that link and use it with the media command.
a simple example of the Media command and using the Radionomy station within active worlds is below
activate media http://listen.radionomy.com/begoodradio-80spop.m3u radius=200 vol=100
for a live demo you can visit kepler22b world and go inside The Machine club located by the roller coaster
Well Happy Building
Ray Barbier AKA Dovestar