Pay-per-click marketing or what is popularly known as PPC is a Search Engine Marketing channel where the advertiser pays only when the advertisement is clicked, against the impression it creates.
While Google, Bing, Facebook are search engines/sites the most popular destinations for PPC ad placements, PPC marketing can be extended to any blogs or influencer web pages as well. The most important feature of the PPC channel is that advertisers have access to a a targeted audience - where their brand, service or product is placed as an advertisement to an audience based on specific keywords or behaviour.