Kinda surprised. Google's core business is advertising. Some vertically integrated aux services (like chrome) feel ripe for antitrust, but I wasn't expecting ads themselves. What is Google without ads?
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Google bought Doubleclick for $3 Billion. Today it is worth $22 Billion. When Google got into ad-tech, they drifted away from their core market: users. And started to endorse the other side that turned users into products.