...and once again, an article that could have actually gone in depth on this topic, manages to leave out the data these companies collect and purchase from thir

...and once again, an article that could have actually gone in depth on this topic, manages to leave out the data these companies collect and purchase from third parties (e.g. credit card transactions) and public records. An accurate title for this piece would have been "This is all of the data Facebook and Google are willing to tell you they have on you"