I found the link in the first line of googles robot.txt file, its basically the terms of service for using automated scripts or programs to collect data on Facebook. I think it sucks that anyone can request permission to just mass collect personal data like that, really makes you wonder what else you agreed to in the Terms of Service. Do other social networking sites allow this or is just facebooks shady ass?
Actually saw something on ATOS the other day that said, basically, anything you post on facebook is saved forever. Messages, posts, chat messages. Private information and all that.
Even worse, this information is freely available for the police whenever they want to see it.
There is also a tracking cookie that can see your entire browsing history and it sends that data back to facebook. So, if you are into some weird shit, facebook knows about it. And so does anyone else that wants your info.