Sometime ago, I registered with Facebook -- and left it alone. I didn't have time to take on the learning curve and wasn't sure how I'd use it, so I just didn't do anything.
Then earlier this week, a co-worker friended me, so I had to go into it to answer her. I had forgotten my password, so I had to ask for a new one. And I acknowledged the friendship to Facebook.
Then a writing friend found me and we were off. She has shepherded me though the system, so now my blogs are also on Facebook. And I have email notification of Facebook activity in my inbox each day.
So if you're on Facebook, check me out.