What it is:
OpenX is an open-source advertising server that is licensed under the
GNU General Public License. It features an integrated banner
management interface and tracking system for gathering statistics. The
product enables web site administrators to rotate banners from both
in-house advertisement campaigns as well as from paid or third-party
sources, such as Google’s AdSense.
With over 50,000 publishers serving more than 300 billion ads per
month, OpenX is the largest publisher-side ad server in the world.
OpenX ad server is used on over 5% of the top 10,000 most traffic
websites in the world
OpenX provides standard banner rotation, click tracking, zone-based ad
selection, zone-based campaign targeting, direct ad selection, ad
targeting (per browser, domain, language, etc), ad capping and full
Adobe Flash support.
To know more about: