Please check out our latest version that we've added to the Opt In Broadcast+ line of products. This version allows the license holder to sell accounts or to act as an email service provider. We've decided to market it to mailers that would like to run an ESP service similar to Onpoint, Volo, Listmarketer, etc but also to ad networks that would like to attract mailers to their network. http://www.optinplus.com/adnetwork-brochure-web.html