Chrome sends every URL you type in the search/URL bar to Google. (With the pretext that they need to check if it ia search term.) With Chrome they can build a

Chrome sends every URL you type in the search/URL bar to Google. (With the pretext that they need to check if it ia search term.) With Chrome they can build a profile on each user which includes how much time they spend on every site they go to. They can sell and use all this profile data in all sorts of ways. They can fine tune search results to push more sticky sites, since they can aggregate which sites really keep their users. And it means that they can verify that their other tracking cookies and methods are accurate, and can better weed out all sorts of shtick, and pick up the trends before they are bitten. Controlling the internet (by controlling the interface used to reach it) is just the small change.