iEveEra payperclick PPC model of internet advertising, a publisher is compensated each time an advertisement link is "clicked" on. PPC is also referred to as the cost-per-click (CPC) model. Search engines like Google and social media platforms are the main providers of the pay-per-click business (e.g., Facebook). The flat-rate PPC model is the most popular type of model because it ensures that advertisers will not be surprised with a high bill every month