Ad targeting based on ISP tracking now in doubt

By ANICK JESDANUN , AP Internet Writer, Technology / Internet

(AP) -- It sounded like a winning proposition - free money - for Internet access providers. By tracking their subscribers' personal Web surfing habits, they could help deliver ads targeted to the consumers' interests, and claim a share of the burgeoning online advertising market dominated by Internet search companies. But those efforts to sniff out consumers' interests are running into the ditch.

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