The New York Times reports on an ad industry practice known as personalized retargeting or remarketing, where Internet users are followed from site to site by ads for items they've viewed online. With more retailers and Internet companies using it, the report states, retargeting, which relies on placing cookies on users' browsers, has reached a level of precision that is leaving consumers with the palpable feeling that they are being watched as they roam the virtual aisles of online stores." While the practice is raising privacy advocates' concerns, even some advertising and media experts suggest the practice is "bold," the report states, and many users may not like it. (Registration may be required to access this story.)
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