The New York Times, March 11, 2009 by Stephanie Clifford
http://www.nytimes.com/2009/03/11/business/media/11target.html?_r=1
Paul M. Schwartz, a law professor at the University of California, Berkeley, and an information privacy law expert, said tracking by advertisers was problematic. “People should be allowed to trade most kinds of information for value as long as the terms are fair,” he said. “They’re not fair now.”