It’s some kind of online community music/radio thing. You can get a better explanation from the site.
I signed up for it, downloaded the media player and the plugin for Winamp and settled down to some new music.
The player allows you to search for “stations” that have music similar to any band you specify. So in went Yes and I was listening to King Crimson, Marillion, The Eloy and, strangely, Neil Young.
Recently I’ve let my musical interests get stale so this is a godsend.
Also they provide scripts for your website which lifts the name of the artist/track that you’ve just listened to and shows it to the world. Mine is in the footer.
And the player isn’t just available for Windows, so everyone can play…