CPC means cost per click, which refers to the advertising method where you pay per click on your ads. When an advertiser runs CPC ad campaign, he will be paying for every click generated on his ads. People do not randomly click on ads, when they click, they do because they are interested in the product or service advertised. Therefore, clicks are likely to end up with sales. Therefore, CPC ads are good for advertisers and advertisers pay for each click on their ads which is likely to generate sales. However, CPC ads are also expensive because the average CPC rate on Google is around $2.