Facebook (cont)

I read Joe Murphy and Heather Moulaison's article, and I agree with their primary contention that Librarians need to develop the skill sets necessary to utilize and leverage social networking sites so as to provide quality services to library users.  In fact, there is nothing I read in their article that I would disagree with.  Social networking sites are so popular that for libraries to remain relevent we have to integrate our services and resources into this medium as much as possible, and also have a deep understanding of how it works.  However, from a personal standpoint I still don't understand the fascination with these sites, including Facebook.  Is posting your birthday, a few photos of yourself, and some maps of the places you've traveled to that interesting to your friends?  More importantly, I often wonder if we're giving up to much of our privacy as we engage in social networking.  I know that's a shockingly "20th century" way of looking at it, but I still wonder if it's true!  However, I'm willing to keep an open mind.  Maybe as I use Facebook, Twitter, etc more extensively, I'll change my mind.  We'll see!