The invention relates to a system and method for presenting advertisements to a user. A user network processing device transmits at least one user request for an advertisement and presents advertisements served in response to the user request for an advertisement to the user. A content provider server having a local ad delivery engine with local ad campaign data receives the user request for and advertisement and transmits an advertisement to the user in response to the user request for an advertisement. A central ad planning server having a database operable to store central ad campaign data, the central ad planning server periodically transmits at least a portion of the database to the content provider server to update the local ad campaign data.