We compared the data broker categories with the crowd-sourced list of what Facebook tells users about themselves. We found none of the data broker information on any of the tens of the thousands of “interests” that Facebook showed users.
Our tool also allowed users to react to the categories they were placed in as being “wrong,” “creepy” or “spot on.” The category that received the most votes for “wrong” was “Farmville slots.” The category that got the most votes for “creepy” was “Away from family.” And the category that was rated most “spot on” was “NPR.”
By Julia Angwin, Terry Parris Jr. and Surya Mattu- This story was first published by Propublica
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