Each element of a Hyperlinked set of documents is assigned a numerical weight based on Google link analysis algorithm which is called Google PageRank. Value of an individual page depends upon uniquely democratic nature of link structure that a page has. Google interprets a link from page X to page Y as a vote, by page X, for page Y. But, Google looks at more than the sheer volume of votes, or links a page receives; it also analyzes the page that casts the vote. Votes cast by pages that are themselves important help to make other pages important. A Google PageRank results from a ballot among all the other pages on WWW about how important a page is. A hyperlink to a page counts as a vote of support. The PageRank of a page is defined recursively and depends on the number and PageRank metric of all pages that link to it as incoming links. In simple words, more incomming links of higher PageRank to a page, greater is the importance of that page for Google. Such a page will be indexed in Google in minutes.
