PPC stands for pay-per-click, a model of internet marketing in which advertisers pay a fee each time one of their ads is clicked. Essentially, it’s a way of buying visits to your site, rather than attempting to “earn” those visits organically. Search engine advertising is one of the most popular forms of PPC.
The traffic that comes via Google AdWords or ‘Pay per Click’ is dealt differently. The organic traffic often visits the website for information, whereas the traffic through PPC ads knows what they are clicking on and what they want to buy. Therefore, few visitors coming via AdWords might be more valuable than the organic traffic.