"... Just out of interest, as I've never come across many examples, can anyone give me some rock solid examples of what scary stuff facebook / a 3rd party could

"... Just out of interest, as I've never come across many examples, can anyone give me some rock solid examples of what scary stuff facebook / a 3rd party could do with my data? ..." The biggest problem isn't just finding one piece of evidence a user has revealed, it's inference of collective data. Because access can be made at so many levels on Fb via the API you can infer information from the data alone. [0], [1] Data mining of server logs and inference poses the biggest potential threat. [0] Carter Jernigan, Behram F.T. Mistree, "Facebook friendship exposes sexual orientation", MIT ~ http://firstmonday.org/htbin/cgiwrap/bin/ojs/index.php/fm/article/view/2611/2302 http://firstmonday.org/htbin/cgiwrap/bin/ojs/index.php/fm/ar... [1] Paul Fenwick, "Dark Stalking on Facebook" ~ http://news.ycombinator.com/item?id=816372 http://news.ycombinator.com/item?id=816372 & http://use.perl.org/~pjf/journal/39608 http://use.perl.org/~pjf/journal/39608