Just added for testing to Grooveshark Preview: Facebook Connect! It’ll now let you—if you choose—automatically post songs to Facebook that you Favorite on Grooveshark.
You can also tell your friends whenever you start a new playlist!
The cool thing is that when you connect, it’ll doublecheck to see if any of your Facebook friends have Grooveshark accounts—and give you the chance to pick whose music you wanna follow on Grooveshark. So give it a go on Grooveshark Preview.