The hardly surprising news comes from a study released Monday by Publicis’ Zenith unit, which found that “consumers around the world will spend an average of 19.7 minutes a day viewing online videos on their mobile devices (smartphones and tablets), compared to 16.0 minutes on fixed devices (both desktop computers and smart TV sets).” The study also predicts that online video ad spend will grow at an average rate of 19.8 percent yearly, reaching $30.1 billion in 2018,” Joe Mandese reports.