Marketers’ spend on mobile advertising reached $5.3 billion in the first half of 2014, up from $3 billion during the same period a year ago, according to a new report from the Interactive Advertising Bureau.
Marketers’ spend on mobile advertising reached $5.3 billion in the first half of 2014, up from $3 billion during the same period a year ago, according to a new report from the Interactive Advertising Bureau.