I use Facebook and Fluther, mostly. I’m on Facebook a lot, but honestly I would give up Facebook before Fluther, assuming Fluther counts as social networking.
I think Facebook is really boring. There’s nothing rewarding about using Facebook other than catching status updates about people I haven’t seen since high school, which honestly isn’t all that interesting—I never actually talk to them.
I’ve tried joining the groups on Facebook relating to my major, hobbies, etc, trying to, er, network socially on the social networking behemoth. My major (computer science) has a Group on Facebook with thousands of people on it, yet the discussion boards were dead. I looked in other, more specific areas of interest and found nothing. Facebook gives you nothing more than a way to not forget about people you already know. It doesn’t encourage meeting new ones, and it doesn’t do a particularly good job of setting the stage for you to interact with friends you already have and share a common interest with that you might not have been aware of.
While if I really tried I could make Facebook more social for me, but even in the little time I’ve been on Fluther I’ve had more engaging, interesting, and rewarding discussions than I will ever have on Facebook, and that’s saying something since I give Facebook more of a run-through than most people do.
Fluther for me. =)