Pay Per Click (PPC) is an Internet advertising model used on websites, in which advertisers pay only when their host is clicked on your ad. With search engines, advertisers typically bid on keyword phrases relevant to your target market. Content sites usually charge a fixed price per click instead of using a tender system.

Cost per click (CPC) is the amount of money an advertiser pays search engines and web publishers for every click on your ad that brings one visitor to your website.

In contrast to the generalized portal, which tries to handle a large volume of traffic to a site, PPC model implements called affiliates, that offers shopping opportunities where people can surf. To do this, offering financial incentives (as a percentage of revenue) to affiliated partner sites. The affiliates provide purchase, click-through section of the store. This is a pay-for-performance model - if an affiliate does not generate sales, at no cost to the merchant. The affiliate model is inherently well suited to the web, which explains its popularity. Variations include, banner exchange, pay per click, and revenue sharing programs.

The websites that use PPC ads will display a warning when a keyword query matches your keyword list, an advertiser or when displaying a content site with relevant content. These ads are called sponsored links or sponsored ads, and appear alongside or above the organic results on the results pages of search engine, or anywhere a web developer selects a content site.

Although there are many providers of PPC, Google AdWords, Yahoo! Search Marketing and Microsoft adCenter are the three major network operators, and all three operate under a supply-driven model. The cost per click (CPC) varies depending on the search engine and the level of competence for a given keyword.

The PPC advertising model is open to abuse through click fraud, although Google and others have implemented automated systems to prevent abusive clicks by competitors or corrupt web developers.

While each company is different Wildnet Technologies has developed a four step process for making the most of your ppc investment. For starters, they will begin by researching the keywords for your site to identify those with the most potential and those which can be used most cost-effectively.

After selecting the desired keywords, they are tested carefully to make sure they are getting results. This is an important part of ppc services because it ensures that you're going to be getting the results you're hoping for. Next, the results will be analyzed and the campaign will be refined based on the analysis reports. If necessary, the process can be repeated until the results satisfy you.

Keyword Pay per Click When an advertiser post his website for Keyword ppc campaign, they have to bid for keywords or product model number. When visitors search the products or services on the Internet using those keyword or phrases, his/her site will be shown and as users click on their link, advertisers will be charged per click made by the site visitors. Common Pay per click keyword search engines are Search 123, GaZabo.com, SearchFeed, LookSmart, 7Search, GoClick, Enhance Interactive, ePilot etc.

Product Pay per Click
Product ppc engines, also called Product Comparison Engines or Price Comparison Engines, allows advertiser to feed their product databases. When users search for the product, links to various advertisers selling that product will be listed and user can sort products by price range and click on the selected link to purchase that product. Product Pay per Click search engines are Price Leap, Pricethat, BizRate, Shopping.com, Nex Tag etc.

Service Pay per Click
Service Engines allow advertisers to feed their service databases, so that when user search for the particular services, link to advertisers providing that services will be shown and permit visitors to select the services by price range and by some other methods. Few Service Pay per Click search engines are TripAdvisor, Pricethat, Sidestep etc.