Keith: Go take your blood pressure medication and sit down. This one is going to send you through the roof.
My 8-year-old son has Facebook, and has for at least a year. GASP!
It started as a way for him to play Farmville with this Grandma several states away. (He is the youngest of her grandchildren and this was a good way for her to get to keep in contact with him as much as she wanted.) His only friends were me, dad, and Grandma. His older cousin saw him listed on Grandma's friend list, and asked if she (then 9-years-old) could have a Facebook so she could say hi and they could post pictures to each other. He now has 23 Facebook friends, all family (or so close they might as well be family). It's been great to see the kids being a part of each other's everyday lives, even though they are separated by thousands of miles. The teenagers even tell their friends to watch their language and what they post, because little one's could be watching and don't need to be dragged into the drama.
I'm not saying our kids are perfect. But my sister-in-law knows I will call her if I see anything questionable that she needs to be aware of, and vice-versa. And the kids all know that we are available to them 24/7 to be the grownups in their lives and help them make good decisions, even from so far away.
Facebook isn't all evil. Just like Keith isn't always an asshole.