I am amazed by the amount of social networking sites. A librarian friend, Beth Gallaway, invited me to iLike today and I LOVE it.
Here's the description:
Discover New Music
Check out what your friends are listening to, browse the libraries of people with similar tastes, and get Free MP3 downloads by new artists matched to your own music tastes.
Share and Compare
Share music libraries with your friends, browse and sample their most played songs, and compare your compatibility scores.
Get the iLike Sidebar for iTunes
Auto-organize your iTunes library, share your music tastes with friends, and get music recommendations directly in iTunes.
See my taste in music by looking/listening at my profile page.