What Facebook and corresponding commercial companies that use this data are doing is stereotyping the users. Apply this to offline life. How would you like it if you just met someone and told them you once read the book, Fifty Shades of Grey, and naturally they assume you are into S&M, and probably into the Twilight series? Is that a fair assumption that should be made? It’s ludicrous right? People shouldn’t do that. So why should Facebook and other data mining companies? Your Facebook profile, and other online personal profiles for that matter, should be the information that you post and want others to see. It should reflect you solely because well, you put that information out there. Your profiles should not be a wealth of information for companies to use and make out of context assumptions about you. The user should be able to control their online presence and not have it be constructed by some impersonal logarithm that assumes that IF a user ‘likes’ X, THEN they must be Y and act accordingly.