PageRank Technology: PageRank
performs an objective measurement of the importance of web pages by solving an
equation of more than 500 million variables and 2 billion terms. Instead of
counting direct links, PageRank interprets a link from Page A to Page B as a
vote for Page B by Page A. PageRank then assesses a page's importance by the
number of votes it receives.
PageRank also considers the importance of each page that casts a vote, as votes
from some pages are considered to have greater value, thus giving the linked
page greater value. Important pages receive a higher PageRank and appear at the
top of the search results. Google's technology uses the collective intelligence
of the web to determine a page's importance. There is no human involvement or
manipulation of results, which is why users have come to trust Google as a
source of objective information untainted by paid placement.