AdGear Ad Manager WordPress plugin is the best and easiest to use ad/wordpress integration out there. No mucking around with complicated website setup in your ad server. No mucking around with embed code snippets. With AdGear and this plugin, it's all done for you. Screencasts coming soon.
At one point, Open Hub analyzed source code for this project based on code location(s) available at that time. Since then, the code locations have been removed.