How are site rankings derived?

We think site rankings should be directly relevant to the merchant?s category and location, so we don?t just rely on nationwide rankings (though we do use them as a reference). The primary method for determining rankings is to search by business category and city across four search engines and group the results by site category: internet yellow pages, regional directories, social networking, etc. Using this method, we can determine the most relevant social networking site for your category and city, the most relevant internet yellow pages site, and so on.