PPC is an acronym for “pay-per-click”. It refers to a marketing model whereby businesses pay advertisement agencies like Site Wizard based on the number of clicks on an ad. PTC, on the other hand, stands for “paid-to-click”. PTC isn’t a form of advertisement at all. It’s a fraudulent practice in which illegitimate companies pay people to click ads. They do this in order to cash in on advertisers by collecting fees for driving clicks through to their site. The problem with this is that the people clicking the ad have no interest in the product or service in the advertisement at all and therefore aren’t valuable to advertisers. For this reason, PPC platforms shut down these operators whenever they are discovered.