Programmatic buying methods like real-time bidding are attracting more advertising dollars as marketers and publishers recognize the benefits. Spending on programmatic buying is predicted to grow significantly in coming years, accounting for around one-third of all US digital display ad spending by 2017. The document provides an overview and statistics on key trends in programmatic buying, including growth in real-time bidding spending, mobile and video opportunities, and concerns from both publishers and marketers around issues like pricing, data and ad quality control.