When a typical individual surfs the internet, he or she will more than likely use a search engine like Google or Yahoo!Search to proceed with the search for specific information. After a result is returned by the search engine, this typical individual is likely going to click the link at the top of the page or at least a link found on the first page. The awareness of this leads many web masters to hire search engine optimization professionals to increase their page rank. A higher page rank means more web traffic for a web site.
— Page rank and search engine algorithms —
A high page rank is attained if the search engine finds the web site relevant to the specific keyword query made by a web surfer, and search engines have certain criteria for ranking the millions of web sites in their indexes. To be on top of the results page or to have a high page rank therefore, a web site must fulfill the criteria set out by the search engines. Search engine optimization professionals make a study of the search engines search algorithms and try to incorporate these algorithms into a web sites pages.
— Link popularity as a criterion for search engine...