What is Page Rank ?
In short Page Rank is a “vote”, by all the other pages on the Web, about how important a page is. A link to a page counts as a vote of support. If there’s no link there’s no support (but it’s an abstention from voting rather than a vote against the page).
How is Page Rank Used?
Page Rank is one of the methods Google uses to determine a page’s relevance or importance. It is only one part of the story when it comes to the Google listing, but the other aspects are discussed elsewhere (and are ever changing) and Page Rank is interesting enough to deserve a paper of its own.
Page Rank is also displayed on the toolbar of your browser if you’ve installed the Google toolbar (http://toolbar.google.com/). But the Toolbar Page Rank only goes from 0 – 10 and seems to be something like a logarithmic scale:
Toolbar Page Rank:
(log base 10) Real Page Rank
0 0 – 10
1 100 – 1,000
2 1,000 –...