Programmatic advertising is becoming increasingly dominant in digital marketing, with a year-on-year increase of 76% in programmatic ad spending as of April 2015, and a projected market growth from $14.2 billion in 2015 to $36.8 billion by 2019. A significant portion of marketers (70%) have reallocated budgets from TV to programmatic video, yet many still lack understanding of how programmatic works. Major spenders on programmatic ads include the electronics, finance, and automotive sectors, with sociodemographic targeting being the most popular approach.