PPC stands for Pay-Per-Click, which is a form of online advertising where you pay for each click on your ad. While PPC can be a highly effective way to drive traffic to your website, it differs from SEO in that it is a paid form of advertising, whereas SEO is focused on organic (unpaid) search results. Both PPC and SEO can be valuable components of a comprehensive digital marketing strategy, and both can be used in conjunction for the best results.