page rank improve by quality content and best and high no of backlink with good trust follow...............

there are two most important way to get high rank:
1 post always fresh and unique content
2submission on high PR websites.

Page rank is that the website is placed in which position in search engine.
To increase the page rank,
Quality content
Quality back links
These are the things needed to increase the page rank of the site.

Go to the browser tools and install Page Rank checker extension once you installed that it will show you the webpage or website page rank from 0 to 10.

PR(Page Rank) is just the number which indicates your website value in Google's point of view, and where google rank your website out of 10. More rank means your website has more value. It updates randomly thrice a year or so.

To increase the PR you need to put good, unique, informative and relative content on your page, need to get good quality backlinks from relevant sites and high PR sites.

For better guidance stay updated with Google guidelines and keep reading some good seo blogs and google updates.