· Unique hierarchy structure · 5 campaign types (fixed, day, clicks, percent, free) and 1 campaign type reserved for future use (images) · Campaign targeting for: · date interval (date from - date to; 1.6.2002 - 7.6.2002) · time interval in a day (time from - time to; 9:00 - 15:00) · weekday (saturday and sunday only) · client (max. client count, max. period count, max. period time) · Campaign priority (if not defined a campaign has low priority; if defined higher number means higher campaign priority) · Campaign is targeted for specified order, the order has a relationship to specified advertiser · Advertising zone is specified by page and page position · One campaign can belong to one or more advertising zones if pages are entered in tree structure, campaign can belong to zone and it's sub-zones in pages tree structure · User can define page capacity for every page if not defined default page capacity is used · User can define page capacity in a day for every page if not defined default page capacity in a day is used · Every page has specified category to which the page belongs (business and economy, ...) · Banner targeting for: · date interval (date from - date to; 1.6.2002 - 7.6.2002) · time interval in a day (from - to; 9:00 - 15:00) · Banner is targeted to specified order or campaign indirectly through banner weight; banner weight determines probability, that defined banner will selected from a set of advertiser's banners · Banner is specified optionaly by html code or image url and image reference url · Banner flag define, if statistics will collect data about click through and images sended · Default banner definitions for default page and all page positions allow to send default banner in situations, when none other banner was selected from set of banners · High performance - Over 100 milion banners can be resolved per 1 day (Dual Athlon 1500)