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by DennisP 5736 days ago
Sure. But a third-party cookie does more than track your activities on the site that gave it to you. If you get a DoubleClick cookie, then DoubleClick will be able to track you on every site that runs DoubleClick ads. Ie., they'll be able to tell that the same computer is hitting all these sites. This lets them target ads to you based on your whole history across all DoubleClick-serving sites, and to market your profile to their customers.