CHICAGO, July 21 /PRNewswire/ -- The popularity of smartphones and in particular, Apple's iPhone, is leading advertisers to make major investments in mobile advertising, according to the STRATA quarterly survey of major advertising firms. Nearly one-third of advertisers say that mobile advertising i
Source : http://www.prnewswire.com/news-releases/strata-sur...
Source : http://www.prnewswire.com/news-releases/strata-sur...