NEW YORK - Although a large Internet service provider has backed away from technology that tracks subscribers' Web use in order to deliver personalized advertising, two other broadband companies say they are still considering whether to deploy it. Phone companies Embarq Corp. and CenturyTel Inc. have both completed trials of the same tracking system, from online advertising company NebuAd Inc., and are now considering whether to proceed. The largest U.S. Internet provider that had been actively looking at Web tracking, Charter Communications Inc., announced Tuesday that it had canceled its planned test because customers had raised concerns. The technology gathers data on the interests of Web surfers by looking at the sites they visit. It passes the information to online advertising companies, without revealing a surfer's...
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