It was a one-two-three punch. First it was Craiglist, then it was Google, now its Facebook. The main difference between google and facebook is that search opt

It was a one-two-three punch. First it was Craiglist, then it was Google, now its Facebook. The main difference between google and facebook is that search optimizes for sending you on your way, so the destination sites could still do something with their audience. Facebook is extremely optimized to keep you on facebook, so in a raw attention-economy eyeball-minutes sense FB hurt much more than google. And yes, if you're looking for full spectrum technicalities here amazon and microsoft and yahoo all shaved a few % each themselves too. But the high order bit, in 2020, is unequivocally FB.