In terms of the global trends, wherever you look in major markets, the forecasts for 2017 are for continued very rapid growth in digital ad spend, driven by mobile. Consumption on desktop is declining, and the preference to read on smaller devices is growing fast, which is a challenge for monetization. The media has found that it's harder to monetize mobile than it is to monetize the bigger screen.
On November 15th, 2016. See this statement in context.