I'm a computer scientist studying creepy things we can do with your online data – AMA
Edit: Thanks everyone. Sorry for posting this too early - I appreciate your patience. I'm done for now, but I'll try to catch up with all the unanswered questions over the next day or so. -Jen
My short bio:
I'm a professor at the University of Maryland and Director of the Human-Computer Interaction Lab there. I've written a book, Analyzing the Social Web, on how to analyze social media, and my research focuses on social media, computing, and privacy. I've also written for Slate and the Atlantic.
Even if you try to keep it private, using computer models, we can find out all kinds of information about you from your Facebook/Twitter/other social media profile – sexual orientation, political leanings, personality traits, drug and alcohol habits, etc. The science behind this is fascinating, but it also raises really interesting questions about privacy and what control you should have over your data.
This is what I spend all my time working on. Want to know what we can find out about you, how it works, and what it means? AMA!
More info at my TED talk here: http://www.ted.com/talks/jennifer_golbeck_the_curly_fry_conundrum_why_social_media_likes_say_more_than_you_might_think
More about me at http://en.wikipedia.org/wiki/Jen_Golbeck