I did a search and didn't find anything on Nutsie. Saw this on Fox News tonight. Duff McKagan from some band called Guns N Roses has a program called Nutsie, which of course is an anagram of iTunes. What you do is upload your iTunes playlist info to the site, and others can see and listen to your songs. There are all kinds of categories like best songs of 19xx, or best guitar solo songs, etc....it's pretty cool. Obviously you need iTunes, but this is free. I'm gonna go check out some other peoples stuff. http://www.nutsie.com
You don't actually need iTunes to have a superb experience with nuTsie. You can create an account and "shop", for free, the entire site adding other people's playlists/songs to your account.