| 摘要 |
A system to facilitate trading of advertising comprises a publisher broker representing at least one publisher and to determine an ask for an advertisement space on the publisher's webpage, an advertiser broker representing at least one advertiser and to manage an advertiser's bid for the advertisement space, and an exchange to facilitate a transaction for the advertisement space between the publisher broker and the advertiser broker. A method of facilitating trading of advertising comprises receiving an ask from a publisher broker for advertisement space on a webpage, receiving a bid from an advertiser broker for the advertisement space, and pairing the ask with the bid. A method for enriching user information comprises aggregating user information about a user, storing the aggregate user information according to a user identifier, receiving the user identifier from an exchange, and sending the aggregate user information to the exchange.
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