Alphabet Inc., the parent holding company of Google, announced that Google's revenues rose 21% year-on-year in the third quarter on a constant currency basis to 18.7 billion US dollars. It attributed the increase to "substantial growth in mobile search revenue, complemented by contributions from YouTube and programmatic advertising."
“Our Q3 results show the strength of Google's business, particularly in mobile search. With six products now having more than 1 billion users globally,” said Ruth Porat, CFO of Alphabet and Google, referring to Google search, YouTube, Android, Google Maps, Google Play and Google Chrome. However, Google's "cost per click" - the average revenue it earns each time a user clicks on an advert - fell 11% year-on-year, reflecting the fact that advertisers tend to pay less for clicks on mobile devices than for clicks on PCs. source: Google statement