"I've found a site"

-A- site?!?!?! Just one?!?!?!?! Over the millions of web sites spanning cyberspace?!?!?!?!

Any idea what the odds are of any one person FINDING that site, even through a GOOD search engine?!?!?! Check the hits on that page... more than 10? ;-)

And if it is a SITE they are posted at, if they are uploaded to a server, you have the legal right to sue them to have your mp3s taken off...

Other than that, if say your music is on a peer-to-peer service like morpheus, the best you can do is stop cowering behind the 'guest' moniker and politely ask your fans and everyone else to not share your music...

And then accept that not everyone is gonna do it, but your fans will continue to support you, just like they always have...