n Ads Follow Web Users, and Get Much More Personal, published in the New York Times, July 31, 2009, Stephanie Clifford reports that companies are linking your online behavior with the information that offline companies have tracked about you, to create a thoroughly personalized profile of you. Advertisers can use these profiles to provide micro-targeted messages to consumers, complete with appropriate offers.
Clifford explains how this excites advertisers and scares privacy activists. Regardless, this definitely provides a practical application of research.
Read the article at http://www.nytimes.com/2009/07/31/business/media/31privacy.html?_r=1&hp.