Here an excerpt from Chapter 3 "IV. The Discovery of Behavioral Surplus":
"[...]Google would no longer be a passive recipient of accidental data that it could recycle for the benefit of its users. The targeted advertising patent sheds light on the path of discovery that Google traveled from its advocacy-oriented founding toward the elaboration of behavioral surveillance as a full-blown logic of accumulation. The invention itself exposes the reasoning through which the behavioral value reinvestment cycle was subjugated to the service of a new commercial calculation. Behavioral data, whose value had previously been “used up” on improving the quality of Search for users, now became the pivotal—and exclusive to Google—raw material for the construction of a dynamic online advertising marketplace. Google would now secure more behavioral data than it needed to serve its users. That surplus, a behavioral surplus, was the game-changing, zero-cost asset that was diverted from service improvement toward a genuine and highly lucrative market exchange. These capabilities were and remain inscrutable to all but an exclusive data priesthood among whom Google is the übermensch. They operate in obscurity, indifferent to social norms or individual claims to self-determining decision rights. These moves established the foundational mechanisms of surveillance capitalism. The state of exception declared by Google’s founders transformed the youthful Dr. Jekyll into a ruthless, muscular Mr. Hyde determined to hunt his prey anywhere, anytime, irrespective of others’ self-determining aims. The new Google ignored claims to self-determination and acknowledged no a priori limits on what it could find and take. It dismissed the moral and legal content of individual decision rights and recast the situation as one of technological opportunism and unilateral power. This new Google assures its actual customers that it will do whatever it takes to transform the natural obscurity of human desire into scientific fact. This Google is the superpower that establishes its own values and pursues its own purposes above and beyond the social contracts to which others are bound."
[1] https://www.worldcat.org/title/age-of-surveillance-capitalis...