It seems concerning that my personal information can be so easily summed up and displayed in easily digestible format. I'm not sure if you can view other people's Wolfram Alpha Facebook summaries, or what data they could be collecting about me... However, here is one study that demonstrates that your sexual orientation can be determined just by analyzing your Facebook friends.

http://firstmonday.org/htbin/cgiwrap/bin/ojs/index.php/fm/ar...