Well, you may be familiar with what is a backlink? If not, here is a brief description. When we talk about page rank actually we are indirectly pointing to number  of backlinks. Backlink is an incoming hyperlink from one web-page to another website.Backlinks play a very essential role in page rankings. “Links are still the best way that we’ve found to discover [how relevant or important somebody is], and maybe over time social or authorship or other types of markup...