This work focuses on the relationship between certain popularity measurements and the positioning algorithm of pages retrieved by Google and MSN Search browsers. Measurements studied were: number of page links, number of visitors («reach»), and number of URL requests on a site («pageviews»). The combination of the last two parameters determines page traffic. The following conclusions were drawn from this research: in Google, location of a result, as determined by the number of links, is supported by the page traffic; thus Google performs better in locating those pages in which a high number of links correlates with a high page traffic. This enables Google to avoid contamination: that is, pages with a high number of links and a low number of visits