PPC stands for pay-per-click, a model of internet marketing in which advertisers pay a fee each time one of their ads is clicked. Essentially, it’s a way of buying visits to your site, rather than attempting to “earn” those visits organically. Search engine advertising is one of the most popular forms of PPC. It allows advertisers to bid for ad placement in a search engine’s sponsored links when someone searches on a keyword that is related to their business offering.