System and method for displaying a data object together with its affiliate's additional object in a web page is provided. For each of a plurality of data objects, assign a unique content identifier and associate a category identifier that indicates to which one of the plurality of categories the data object belongs. An affiliate may be associated with individual data objects or an entire category of data objects. The content identifier of the data object or the category identifier of the category is associated with the affiliate. Each time one of the plurality of data objects is included in a web page, if the data object is associated with an affiliate or if the category to which the data object belongs is associated with an affiliate, then the data object is positioned in the web page together with an additional object associated with the affiliate.
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