Spending on mobile ads is expected to jump 83% this year, but given how much time Americans spend on their devices, mobile-ad spending could be much higher, an indication that marketers remain uncertain about the medium's effectiveness.
WSJ.com: What's News US, Wall Street Journal: Home US
Mon, 07/21/2014 - 12:47pm
Spending on mobile ads is expected to jump 83% this year, but given how much time Americans spend on their devices, mobile-ad spending could be much higher, an indication that marketers remain uncertain about the medium's effectiveness.