Do you have blogs? If yes then you must read this. Every thing has certain rank in comparison between the same type. Like this your blog also have its own rank according to the quality of your post and number of backlinks do you have.
Backlinks means the link to your site from other site. The more you have backlink the more your page will be ranked. The best page ranker is from google. Google ranked the page according to the quality of page and the number of backlinks. If you get backlinks from high ranked site then there is more chance to be get high ranked of your page. Google ranked pages form 1 to 10. Only facebook.com and google itself has pagerank 10 and other are limited upto pagerank 9.
To check the google page rank of your site simple go to prchecker.info and enter the address of your site. It will show the page ranked by google. Most of the websites in this world is having page rank 1 or no page rank ( 0 page rank).