Pay-per-click which is a form of paid advertising online. PPC advertising can be extremely effective in terms of achieving instant and highly targeted traffic to your website. Otherwise website owners would rely on organic search to attain traffic from search engines specifically. A main element of PPC advertising is that you only pay when someone clicks on your ad. All the main search engines like Google, Bing, Yahoo have PPC offerings and you can also set up paid campaigns on the social networks like Facebook, LinkedIn, and Twitter.