London agency ZenithOptimedia predicts that for the very first time spending on mobile advertising will outpace spending on newspapers in the United States. In 2015, mobile will attract $30.5 billion in spending, including social media, display, search and other subcategories, up 54% from last year. By contrast, newspaper spending will fall 7%, to $19.87 billion, an all-time low and less than half what was spent just seven years ago.