What is Google's Page Rank?

... And what does it mean to your web site? 

Google's Page Rank (or PR) is that search engine's measure of how useful and/or important your web page is.

Page Rank is measured on a scale between 0 and 10. A PR0 (a page rank of zero) means Google considers that page to be worthless to its users... Or else the hasn't been ranked at all yet. 

A PR3 or above means the web page is good and valuable to Google's visitors.

The scale is logarithmic, meaning that a PR5 web page is ten times as valuable as a PR4 page! 

Page Rank from Google is one of the most important criteria for being recognized as a good web page.

PR is one of the clever ideas started by Google. Their concept is that if a web page creates a link to another web page then that link counts as a positive vote from the webmaster for the web page that he or she is linking to.

They have reasoned that a webmaster would only link to pages he or she believed were valuable to their visitors. Google uses the number of inbound links to your web page as the criteria to judge the PR importance of that page.

Your page's PR is calculated by calculating the inbound PR from all the back links into your web page. 

The overall quality of your site is another calculation again. Some people say that 85% of your PR is calculated by the content of your page and the rest of the 15% are being calculated by links. But nobody knows for sure how Google calculates PR.

If you want to increase your site's rankings, the best thing you can do is include good content (information) for your visitors. Make your page as good as possible and, hopefully, other sites will link to your page and you PR will go up from your incoming links.