The global ad market is on a path of steady recovery, with growth of 3.5% forecast for 2013, followed by 5.1% in 2014 and 5.8% in 2015, according to the latest ZenithOptimedia forecasts. This growth is being driven by digital innovations, with mobile, by some distance, the fastest-growing segment of internet advertising. As the consumer attention shifts to the screens held in the hand, logic therefore dictates that advertisers also spend their efforts where their consumers are—the mobile channel.