Advertising Age Article Abstract
Facebook, Apple's 'Walled Gardens' Make Analytics That Much Harder for Brands
With Marketers' 'Owned' Media Now Hosted by Social Networks, 'Attribution Analysis' Seen as Growing Challenge
BATAVIA, Ohio (AdAge.com) -- Tracking the effectiveness of advertising on the web was hard enough. Tracking it in the era of "walled gardens" could become that much tougher. ...