AD Center is a CGI script for creating your own Internet ad server. You can display your clients' banner ads on your site. AD Center keeps track of all impressions and click-through stats for each client, and your clients can view the stats for their advertisement(s) online. AD Center also has a banner rotation feature. Keeps complete stats information. Provides Banner Rotation feature. YOu can set time intervals for each banner. For example from 10:00 till 14:00, when banner will be showed. You can set individual advertising page, directory , site or zone for each advertizer's account. YOu can set probability of impression for each banner. You can set URL to banner, upload banner or paste banner code. YOu can show several banners per page. 3 Engines available: standart (cookie based), SSI and JS / Lock IPs for defined time. You can set ALT text for banner (for SSI and JS engines). You can set expiration date for banners. User can check out their total, hourly and daily stats / Enabling/disabling credit system / Click target can be set by admin (_top, _blank etc.). Provides Full Administration control / | 
