“Facebook collects ninety-eight data points on each its nearly two billion users.”
“Facebook also follows users across the Internet, disregarding their `do not track’ settings as it stalks them.”
“[Facebook] also buys personnel information from some of the five thousand data brokers worldwide. . . .”
These quotes are from Sue Halpern, “They Have, Right Now, Another You“, New York Review of Books, 12/22/2016, p. 32.