Facebook knows you better than your friends, parents, and in some cases, even the boyfriend or your girlfriend.
To prove this, some British researcher have created a website which will collect a wealth of information for you based on the "like" nee you do on Facebook.
In the future, this could be used by authorities to find people who can commit any crime.Site called "Apply Magic
Sauce" will be able to distinguish your political views, sexual preferences, intelligence, religion, education and marital status only by analyzing what you "like" you on Facebook.
This site was built by the University of Cambridge, and had two reactions. First by other researchers who say this is not a novelty, since such sites are made well in advance.
While second reaction came from the public, who were shocked at what they are able to make technology people using their data.