PR or page rank is a trademark of google. Page rank is a way to determine the value and importance of a page on web. Page rank varies from 0 to 10. We can view the page rank of a site simply by installing Google toolbar in our explorer. Google ranks pages depending upon the number of ‘votes’ or backlinks that page has on the Internet. The more quality links a page has, the higher page rank that page is going to have in general (spam link or link farm). Page rank of 0 is the minimum and page rank of 10 being the maximum a site can get.

As a general rule, the higher your Page Rank against your competition, the more likely your site will appear in Google’s Top Ten for a given keyword.

Below is a list of some of the top PR sites on the web:

# Google Website

# Adobe Website

# World Wide Web Consortium

# Microsoft Corporation

# NASA Home

# The White House

# Department of Energy

# Keio University

# US NSF (National Science Foundation)

# ERCIM (The European Research Consortium for Informatics and Mathematics)