For a publisher to be on Snapchat Discover, they need to be prepared to pay Snapchat for the opportunity, The Information’s Tom Dothan writes. While the terms may vary, all publishers have agreed to give Snapchat a cut of their ad revenue, which is usually 30 percent. But some publishers’ agreements with Snapchat include a guaranteed minimum amount of money over time, guaranteeing that Snapchat makes money even if the publishers don’t sell ads.