What is pay per click?

Pay Per Click (PPC) or Cost Per Click (CPC) is an advertising model in which the advertisers pay each time a customer clicks on the online advertisement. It is generally associated with the most frequently used search engines like Google and Bing. This advertising model is also being used by various social networking sites like Facebook, twitter, Pinterest and LinkedIn.

Although there are different types of PPC ads, the most common is the paid search advertisement. These advertisements appear when people visit search engines for commercial purposes.  Keywords for products trigger PPC ads.