See the source for a Franklin Foer interview transcript; tangentially, see Retailers Are Testing Facebook-Style Shopper Profiles to Battle Amazon | Bloomberg
"And although Google and Facebook’s core products are free, their concentrated power is still dangerous, he noted.Why Amazon is a ‘bully,’ and Facebook and Google are ‘the enemies of independent thought’ | Recode
“Facebook and Google are constantly organizing things in ways in which we’re not really cognizant, and we’re not even taught to be cognizant, and most people aren’t, and done in a way in which they’re leveraging our data,” Foer said. “Our data is this cartography of the inside of our psyche. They know our weaknesses, and they know the things that give us pleasure and the things that cause us anxiety and anger. They use that information in order to keep us addicted. That makes the companies the enemies of independent thought.”"