PopCashnet is an online advertising network that specializes in pop-under advertisements. As a self-serve platform, PopCashnet enables advertisers to reach a global audience by allowing them to create, manage, and optimize their campaigns with ease. For publishers, it offers a monetization solution by displaying pop-under ads on their websites. The platform promises a fast approval process, timely payments, and provides various targeting options to ensure ad campaigns meet specific audience criteria. The service is accessible to both advertisers and publishers through its website at http://popcash.net.