Though Google these days has its hand in everything, from robotics to advanced AI, the company’s billions by and large continue to come exclusively from advertising. More to the point, 90% of the $66 billion Google generated in revenue in 2014 came directly from advertising-related ventures
Not surprisingly, an increasingly important part of Google’s advertising machine is mobile search. In 2014 alone, 18% of Google’s ad revenue, or about $11.8 billion, came from searches done on mobile devices.
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