2015 will see shifts in the ad tech landscape as brands, publishers and agencies realize the full potential of real-time advertising. It is predicted that programmatic ad spend is set to top $33 billion globally by 2017. In the US, it is worth more than $10bn and is expected to more than double to $20.41bn in 2016. Graham Wylie (Senior Director, EMEA & APAC Marketing at Appnexus) writes in his article link writes about the key trends that will dominate the ad-tech space in 2015: http://digitalmarketingmagazine.co.uk/digital-marketing-advertising/the-5-trends-set-to-shape-ad-tech-and-programmatic-in-2015/1399