Pay per click ads - definition
Pay per click (PPC) is an online advertising model where the advertiser pays for click-throughs. Other paid options include CPC or cost per thousand impressions.
Typically positioned at the top and the right side of the search engine results page, and on a tinted background to indicate that they are advertisements, paid ads are purchased to be exposed in searches on a particular keyword or keyword phrase.
Studies indicate that paid advertisements, despite being at the top of the page, are clicked by just 25% of searchers. Organic results, or those selected naturally by the search engines, make up the other 75% of clicks.