Search engines, content-rich web sites and blogs rely on the pay per click advertising model as one of the most common available on the electronic market. The fundamental working mechanism is that one gets charged on the ads only when a user clicks on them; on keywords, the prices asked by search engines vary depending on how much in demand the phrase really is, while with content sites the price is normally fix rather than flexible like in the keyword bidding system. There is a close connection between ads display on certain sites and the content of the web pages. Thus, only web site that belong to the same domain of activity will be able to display and support your advertising efforts.

Microsoft adCenter, Google Adwords and Yahoo!Search Marketing represent the major pay per click service providers. From the list of pay per click search engines, Google has the highest fees by far. The advantage with this giant network results from the huge market exposure of a product or service, which would justify the high costs per keywords. The very fact that the pay per click system is omnipresent in the world of online advertising has attracted lots of scams and fraud attempts.

How does the pay per click system generate revenue? Well, as we have mentioned already, the advertisers pay only when a user clicks an add. The same clicking system brings money to the websites that display the ads. In both cases, the pay per click engine has a share of profit. Very advantageous pay per click combinations are the sponsored placements in which the advertisements are located on the search result pages for the Internet surfer to scan together with the search results.

Pay per click advertising is not possible without keywords bidding, and finding the right phrases to define a product or service can be pretty difficult sometimes. Presently, lots of web business investors use special tools to identify adequate keywords to include in marketing strategies. With the professional dimension of this kind of business, the pay per click system will involve constant tracking and monitoring for the analysis of ROI, web traffic relevance, keywords performance and so on. Therefore, more tools will become necessary, in a circuit that definitely takes one far.