Sure: PageRank is based on the quantity (how many) and quality (the pagerank of each of those pages) of other webpages that link to a particular page on the web. It is just one factor that goes into ranking webpages in Google.
PageRank is a link analysis algorithm, named after Larry Page and used by the Google web search engine, that assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of "measuring" its relative importance within the set. In simpler word, Page Rank may be considered as Popularity Rank. It dignify what amount of importance a web page contains in the view of Google. You may follow the link below to know the complex lgorithm of Goolge behind this terminology in a glance: http://en.wikipedia.org/wiki/PageRank
It is very tough to be familier with the background mechanism of determining a page rank by Google but in a simpler way it is somehow affected by the popularity of any specific page over Internet. The more frequent a page is accessed from different systems having different IP addresses around the globe, the more PR that page will be assigned by the Google.
It is basically depend on how site is performing in search engine if site is performing well and attract a lots of new visitors on daily basis then it would be prove good and along-with that site should get quality back links to increase site's page rank.
Page Rank algorithm is used by google search engine to give numerical weight to each page of the website. Page Rank is link analysis algorithm. Google give ranking to website using this algorithms calculations.
the free PR checker tool enables you to check the current pagerank of your web site instantly via the form above, however, you might consider to be quite boring to visit online page rank checking tool every time you'd like to check Google pagerank of your web pages..
so, it might be a good idea to put a small page rank icon to your site to check and display your Google rankings right on your web site pages. To check PR icons - click here.