I've been on Facebook for about six months now. Reconnected with a few old friends. Once the newness wore off, however, I pretty much stopped posting or reading other's posts. I've only got maybe three status posts in the last six weeks or so (other than blog posts that FB automatically posts).
I mean, I don't care that you're bummed because the Lakers lost. Your kid's status as an honor student at So and So Middle School means nothing in my life. I really don't give a crap what you had for dinner, unless you post a recipe and wine recommendation, which you can't do even if you wanted. And I really, really, really don't give a damn about your latest Mafia wars hit or, gawd help us, your latest Farmville exploit. (BTW, here is a great collection of inane FB posts. And here is a post on how to hide the Mafia war-type status posts.)
My latest (and possibly last) status post reads:
I am quite serious about this. I'm really not convinced by Facebook.
Why are we here? What's the point of this form of existence? (FB, not Earth.)
But I am famously asocial (maybe even anti-social), so YMMV.