phpAdsNew

OpenX (phpAdsNew) is a full-featured, open-source, enterprise-level ad server, with an integrated banner management interface and tracking system for gathering statistics. With OpenX you can handle all of your in-house and paid banner rotation, statistics, targeting, capping, and more. Based on php and MySQL.

More information about them, from the website:

Optimize all your ad revenue channels—exclusive, guaranteed, & non-guaranteed—in one place.

Documentation is excellent, installation is a breeze, and functionality is extensive and well thought through. The ad server provides the capability to fully manage publishers, advertisers, campaigns, and campaign creative with a great deal of flexibility and ease. "Compact" or "Verbose" statistical tracking is available with a range of options.

Ad delivery is tracked with high precision in accordance with IAB guidelines, using cookies and 1x1 tracker pixels.

Built-in targeting/limiting options include weekday, time, date, client IP, domain, language, browser, OS, useragent, referring source, or any combination of those. Full boolean queries can be utilized for targeting, allowing tremendous flexibility. When combined with an optional (reasonably priced) geotargeting database, full geotargeting is available - by continent, country, US state, city or region.

Highly recommended.

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