When users click on a link in their news feed, Facebook looks very carefully at what happens next. Says Will Cathcart, who oversees the product management teams that work on the company’s news feed:
“If you’re someone who, every time you see an article from the New York Times, you not only click on it, but go offsite and stay offsite for a while before you come back, we can probably infer that you in particular find articles from the New York Times more relevant”—even if you don’t actually hit “like” on them.
