openx

官方网站 http://www.openx.org/

据说安装量达到 100万 个网站，包含客户系统，广告系统，支持图片，flash,html,js嵌入式的广告
可计算 曝光率，点击量，根据 CPM （千人成本）计算收益

OpenX Ad Server is a powerful open source platform that manages advertising for more than 150,000 websites in over 100 countries. More than 300 billion ads run through OpenX Ad Servers each month. And since it’s available as a software download or as a hosted service, you can decide to run it yourself or let us take care of managing the infrastructure for you.