So far, so… bored.
After the initial fun of seeing what Yahoo! had cooked up for us with their 360º beta (it is invite-only, let me know if you want to look around as well), I’m already losing interest in what’s there. I can see what they’re trying to do, building a community and linking everything (blogs, groups, social networking, instant messaging, photo collections, etc) together, but everything except the social networking website part I do elsewhere anyway, as far as I do that social networking anyway.
After having seen Friendster (which suffered from chronic performance problems when I was there) and Orkut (which was fun but suffered from forums that were below par in that they lacked threading and they didn’t keep track of what you had or had not read) this 360º is just more of the same and while there definitely were some elements that I hadn’t seen in the other two, that could only keep my attention for so long.
Maybe I’ll come back when they announce some new feature, assuming they’ll announce that in their blog.

Sounds like they’re trying to replicate something like MySpace, which seems to be stealing the market from both Friendster and LiveJournal. That could be just a perception, because these companies come and go. But since MySpace is the current “topdog,” it would seem that they would have something extra to add…?
For the record, this is MySpace. Aside from their angle for music (bands/artists can put tracks on their profile pages that you can then play) they seem like yet another social networking site; of course since I haven’t actually used it (just looked at other people’s profiles) my opinion may not count for much.