Global Ad Spend Share Forecast, by MediumSeptember 23, 2014Online BusinessMobile is the fastest-growing advertising medium around the world, says ZenithOptimedia, which predicts global ad spending growth of 5.3% this year and next and 5.9% in 2016.Read the entire article here Global Ad Spend Share Forecast, by Medium. Facebook Twitter Google+ Pinterest LinkedIn Gary Steel Prev. Post All Posts Next Post No Comments