What is PR or Page Ranking?
From the horses mouth over at Google
"PageRank relies on the uniquely democratic nature of the web
by using its vast link structure as an indicator of an individual page's value.
In essence, Google interprets a link from page A to page B as a vote, by page A, for page B.
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" weigh more heavily
and help to make other pages "important."
