US8738442B1 Патенты
A virtual content server and method are provided for virtual content providers to provide multiple items of their virtual to users as part of an ordered virtual content campaign. A pro vider may define the order for the presentation of the content items. Such as a linear sequence or based on a particular logic, e.g., a state transition graph or matrix, and Such order infor mation is stored in a campaign database. The server stores information regarding the state of the campaign for a particu lar user, e.g., how many or which ones of the content items of the ordered campaign have been presented
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