More effective is a massive understatement. Now they can precisely measure effectiveness and adjust their strategy in real time to maximize output. They have increased effective effectiveness several fold. The cat is out of the bag, even if we try to roll this back the googles of the world know the data is there and can’t not harvest it. Our best strategy has to combine regulation and monopoly busting, break these companies into smaller ones that have less power to comb through big data.

For a good read on this, check out The Age of Surveillance Capitalism by Shoshana Zuniga.