In my mind, it's one thing if a Web site that I go to learnt about me based on my interactions and a whole another thing when people start correlating data acro

In my mind, it's one thing if a Web site that I go to learnt about me based on my interactions and a whole another thing when people start correlating data across sites. That's what Facebook is doing with its stupid buttons on nearly every news site. Amazon knows a great deal about my buying habits but that makes complete sense. Facebook knowing what articles I read from the Globe and Mail and the CBC is something else.