Somehow or another they have "reappeared" at the link below .. The word is now that this site does not have any music there but has a search engine that points to web sites that DO have the music you want available. I guess they are trying to claim that the "music is not on our site so don't blame us if you download copyrighted music" ...
All you do is type in the artist or song that you want and a list comes up with a play button and a download button. I could not get the play button to work but every track I downloaded worked fine.
You can read about the demise and reappearance of Grooveshark at the link below .. ..