| 摘要 |
A system comprises an advertiser coupled to a network and having a web property to advertise; an advertisement campaign management system coupled to the network, the advertising campaign management system having a geographically distributed set of servers for storing an advertisement for the web property, criteria indicating when presentation of the advertisement is desired by the advertiser, and a bid for the presentation of the advertisement when the criteria are met; and an advertising channel coupled to the network for requesting ad content from the advertisement campaign management system and for receiving the advertisement from the advertisement campaign management system in response to the request for ad content.
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