Following xkcd #918, I have joined google+. What's google+? To paraphrase that brilliant webcomic, "it's like facebook, but it's not facebook".
(why am I certain that something better than facebook will arrive? That's simply the history of computing. Every software project is supplanted eventually; thinking that software XYZ is the pinnacle of human-computer interaction is the sheerest folly. Something better than facebook, something better than google+, something better than mutt or vim or python, is always bound to happen. Maybe not in 5 years or 10 or 20 years, but it will happen)
Anyway, you can "plus me" (if that's the verb we're going to use) here. Invitations available for people I know who want to join.