This plugin for ruby on rails will allow developers to set up a campaign and banners for the campaign in their database. Then using show_rads_banner :type, (type for example could be banner, skyscraper, tile) it will pull the banner, add an impression to that banners impression count. It is CPM only right now, which is set in the database and RAdS keeps track of whats left in the budget and displays the frequency based on a ratio of remaining budgets in the campaigns. It also keeps count of the clicks, which can be displayed using show_rads_panel(campaign_id) view helper which is included with the plugin.
Project Moved To: http://github.com/coolblade/rails-ad-server/tree/master