Pay per click (PPC) is an advertising model used on search engines, advertising networks, and content websites/blogs, where advertisers only pay when a user actually clicks on an ad to visit the advertiser's website. When a user types a keyword query matching the advertiser's keyword list, or views a page with relevant content, the advertiser's ad may be shown. These ads are called a "Sponsored link" or "sponsored ads" and appear next to or above the "natural" or organic results on search engine results pages.At this present time there are many Companies Search Engines which provides this facility like:- Google AdWords, Yahoo! Search Marketing, and Microsoft adCenter are the largest network operators. Depending on the search engine, minimum prices per click start at US$0.01 (up to US$0.50), these prices are often referred to as Costs Per Click (CPC). Very popular search terms can cost much more on popular engines.
