eMarketer expects increases in US real-time bidding (RTB) digital display ad spending—which includes all display formats served to all devices—to remain impressive over the next several years, with annual double-digit gains driving the total to $12.02 billion in 2018, up from $4.86 billion this year. – See more at: http://www.emarketer.com/Article/Entertainment-Grabs-Biggest-Share-of-Mobile-RTB-Ad-Spend-Worldwide/1010818/1#sthash.aijG2XHg.dpuf

Mobile is playing a huge role in this growth. According to figures released in April 2014 by Smaato, global mobile RTB spending on the firm’s mobile-dedicated RTB-enabled ad exchange SMX platform exploded between Q1 2013 and Q1 2014—jumping 459% year over year. The source predicted that 2014 would see even more impressive growth. Read the rest at eMarketer.