What is PageRank? PageRank is Google's method of measuring a page's "importance."
When all other factors such as Title tag and keywords are taken
into account, Google uses PageRank to adjust results so that sites
that are deemed more "important" will
move up in the results page of a user's search accordingly. A basic overview of how Google ranks pages in their search engine
results pages (SERPS) follows: 1) Find all pages matching the keywords of the search.
2) Rank accordingly using "on the page factors" such as
keywords.
3) Calculate in the inbound anchor text.
4) Adjust the results by Page Rank scores. In reality, it’s slightly more complex and we’ll discuss
this in more depth later, but for now the above description serves
our purposes. It’s worth noting that Page Rank is a multiplier
and is not just simply added to the score. Thus, if your page had
a PageRank of zero, it would rank at the very end of the SERPS.
How is PageRank determined? The Google theory goes that if Page A links to Page B, then Page
A is saying that Page B is an important page. PageRank also factors
in the importance of the links pointing to a page. If a page has
important links pointing to it, then its links to other pages also
become important. The actual text of the link is irrelevant when
discussing PageRank. How can you tell what a page’s PageRank is? To learn what a page’s PageRank is, you can download a toolbar
for Internet Explorer from http://toolbar.google.com. Once installed,
there will be a bar graph at the top of the browser showing a version
of PageRank for the page you’re browsing. When you hold the
mouse over the bar, you see a number from zero to ten. (If you don’t
see the number, you may have an older version of the toolbar installed.
You will need to completely uninstall it, reboot your computer and
reinstall the latest version. Once this is done, you should be able
to see the PageRank number.) Google PR : Read Complete Google
Pagerank Uncovered Online ( PDF ) : Download
Google Pagerank Uncovered ( PDF format ) | 
