What is Page Rank(PR)?

PageRank™ is actually a trademarked term. The trademark belongs to Google Inc. and refers to the "rank" of a website as determined by Google's ranking system. Page Rank is a grade given to a webpage determining the importance in Google's sense. If you have a high rank website, your chances are higher to come on first position as high page rank boost your search result. Page rank is calculated by the inbound link the page is getting.