So, like many librarians, I have a facebook profile. It doesn’t tell you all that much about me on the public face, and all that it does tell you is quite deliberately public information. However, we know that there are always issues with social networking sites because of third parties swooping in and abusing that database for alternative purposes. Check this out: a place I’ve never heard of called Bigsight.org scooped my information and created a webpage for me. It snagged my facebook profile picture to pretty it up, too. They’re not just stealing it from facebook, which would at least just be the sin of stealing bandwidth; they actually stole the image and resaved it (creating a new instance).
Another example of why it’s important to be extraordinarily careful what information you add to social networking sites, and how public you make it.