Interstitial ads have almost twice the clickthrough rate of banner ads and come in different sizes as well. Links, animation and text are used with these ads to move visitors to your website. Visit the sites where you pay for or exchange banner advertisements. Make sure your banner is there. If you decide to use an ad network, make sure to discuss the type of banners that will be placed on your site.
Most ad networks have guidelines about the banners they publish, but it's always good to be careful.