US Mobile Media Ad Spending By Format, 2010-2015 [TABLE]
Breaking down how companies are apportioning their mobile advertising dollars, the mobile web will see the greatest share of money spent, as brands work to mobile-optimize their sites. In 2013, the MMA predicts companies will invest $3.16 billion in the mobile web, translating to about two-thirds of spending. By 2015, that share will drop down to 58%, as mobile apps get significantly more investment. Read the rest at eMarketer.