Do you Facebook? If the answer is yes, how much thought do you put into a post before you hit the SEND button? 

I read a book recently that discussed how people--especially teenagers--use Facebook to craft a carefully vetted persona. The person representing them on FB is just that--a representation, usually of who they wish they were versus the real thing. They use great care when listing what bands they like, who they saw at the local hang-out, or what they're doing while on vacation. There's also a lot of plotting that goes into whose wall they post on or who they mention in a post and don't even get me started on the pictures. It's amazing how there's not one bad picture of any of us floating out there on Facebook. If there is, we untag that puppy faster than you can say, "Unlike."