There are two unique approaches to sell publicizing. When promoting is sold on a CPM premise, that is cost per thousand impressions, and there is a
fixed rate for each 1,000 impressions. When publicizing is sold on a CPC premise, that is cost per snap, and cash is made just when promotions are tapped on.
Google AdSense pursues the CPC model. There are other promotion systems and advertisement offices, for example, Tribal Fusion, ValueClick, Burst!Media, and so on which work on the CPM model.