I find it humorous that there is such a need to DEFINE Facebook. It's different things to different people. We really don't need one definition of what it is or a nice tidy list of the ways people use it, what the benefits are, what the drawbacks are, etc. Every time I read about somebody complaining about Facebook, I usually just end up thinking "I don't use it (exactly) that way, so this doesn't (completely) apply…
Oddly enough I have the exact opposite take on it. My wife and I both don't have Facebook accounts, and while most of my friends also do not have accounts, many of my wife's friends do. These friends live in the same state as us, and while we don't live in the same city we still manage to get together frequently. In the last few years we have noticed quite the trend: everyone of these people on Facebook would do a do…
If I'm talking to you, I want to have a conversation that actually pertains to our unique set of mutual interests. I honestly think of things during the day that I know one particular friend of mine would be interested in discussing, and I remember to discuss it with them later. And it's easier, not harder, to have those kinds of personal talks when I don't have to waste time on scripted boilerplate about what just happened in my life.