Carat: Digital media, with a predicted $17.1 billion or +15.7% increase in spending in 2015, is outpacing previous predictions, according to Carat, the leading global media network. Powered by a dramatic rise in mobile ad spending globally of +50% and online video of +21.1% predicted in 2015, Carat forecasts that digital will, for the first time, account for more than a quarter of all advertising spending in 2016 with a market share of 25.9%.