Data, Display, Mobile, Social Media If you aren’t currently investing in digital advertising, you may want to reconsider. In 2017, eMarketer estimates that 40.5% ($205.06 billion) of the total media ad spending will have gone to digital. By 2021, they estimate that digital will account for over half of all US ad dollars! 27 Nov 2017 Breaking Down US Media Ad Spending (2016-2021) If you aren’t currently investing in digital advertising, you may want to reconsider. In 2017, eMarketer estimates that 40.5% ($205.06… Sarah Chapman