The SEO Ad Network is a network of site owners that offer ad space to the network. In return, the ads they define are displayed across the entire network. The group's mission is to enable small and medium-sized Web sites to increase their exposure with Internet traffic, as a public service.
You receive a small piece of code, for free, to place on your home page. The code will display simple text links of other SEO Ad Network coop Web sites. In return, you receive text link ads from thousands of other sites.
It currently supports PHP, Java, C#, and VB.NET. It offers help if you use a language it does not yet support. Gambling, adult, and any other sites the group believes inappropriate won't be accepted for the ad network. All ads are reviewed before they become live on the network.