Over the past decade, there have been huge shifts in the digital advertising landscape, including the rise of social media advertising, video advertising, and mobile advertising.

According to the Interactive Advertising Bureau (IAB), digital advertising spend was $124.6 billion in 2019, which is about $54 billion more than advertising television spend (the number two medium), with 70% of digital ad spend being served on mobile. Even with the impacts of COVID-19 this year, eMarketer reports that worldwide ad spending is expected to grow compared to the previous year.