Google Net Ad Revenues Worldwide, 2014-2018After several years of impressive gains, growth in worldwide ad revenues at Google could trickle to single digits this year, according to a recent report by digital market research company eMarketer.

Google is expected to hit $57.8 billion in worldwide net ad revenues in 2016, according to eMarketer, accounting for 9 percent growth for the year. By contrast, Google’s worldwide ad revenues grew by 15 percent in 2015 (to $53.05 billion) and 19.1 percent in 2014 (to $46.13 billion).

eMarketer had also previously reported that while Google’s worldwide net search ad revenues had jumped 17.7 percent in 2014 from the year prior and continued growth by 14.5 percent in 2015, that growth too is expected to slow in 2016, to about 8.2 percent

eMarketer noted that Google’s declining growth still leaves the search giant “with by far the largest share of digital ad revenues of any company in the world.” eMarketer expects about a third of worldwide net digital ad revenues — 30.9 percent — will go to Google in 2016.

Google also takes in about a third of the world’s mobile Internet ad revenues, and eMarketer expects Google’s revenues in this sector to climb at a rate more than four times faster than its overall ad revenues.

eMarketer's report can be read here.