Facebook launched at schools not called Harvard the Summer preceding my freshman year of college. It went live at my school a few weeks into that first semester. I enjoyed it immensely and observed it carefully, but sometime in 2007 it really began to wear on me. Later, (~2 or 3 years ago) I more or less withdrew from using it altogether.<p>Circles addresses something like 70% of my gripes with Facebook. Of course, we still haven't seen Google successfully build a social network, so nothing's really been addressed until everyone joins the party (or doesn't). Google+ looks interesting though.<p>Too bad my primary Google account is my Apps account for my primary domain, and since Apps accounts don't have associated Profiles anymore, I don't get to play. Then again, I'm still dealing with the fallout of the transition to "The New" Google Apps, having already used my domain email as a Google account to sign up for really exotic things like Google Reader, so perhaps I don't need yet another new plaything at the moment.<p>I will add that I think the Huddle and Hangout components may offer—in the case of the former—good competition both on Android and in general to iOS Messaging/BBM (the only hang-up that has me short of sold on iOS messaging is people don't yet think of their Apple IDs as communication accounts/channels, their Gmail accounts on the other hand...), and—in the case of the latter—someone not only to compete with Foursquare, but perhaps to answer the question from normal folks: Why "check in" anywhere to begin with? (Because you've arrived at the "anywhere" you just "Huddled" over meeting at, your phones already know it, and if you acknowledge their requests to "Hangout" together, even more of your friends may show up. Or something. That last part's a little hazier for me. What if you want to broadcast to the world that you're enjoying your new favorite tea spot, but you don't want to say which 5 people you're with and risk persons 6 and 7 whom were specifically <i>not</i> invited showing up? In any event it seems to me a more human workflow than "Go places, check in, get points/kittens/whatevr."