Google also revealed a 22pc jump in second-quarter revenues to $16bn, as more people used the search engine on their mobiles and tablet devices. This surge in mobile usage has been a problem for Google in the past, because the company earns less money for “clicks” on adverts that are viewed on mobile devices than it does for those viewed on PCs. However, a 25pc increase in the actual number of clicks offset a 6pc decline in pricing, helping to push Google’s quarterly profits up 6pc to $3.42bn.