Google
has introduces Page Ranking System.
Google PageRank is a link analysis
algorithm used by the Google
Internet search engine, that assigns
a numerical weighting to each
element of a hyperlinked set of
documents, such as the World Wide
Web, with the purpose of "measuring"
its relative importance within the
set. The algorithm may be applied to
any collection of entities with
reciprocal quotations and
references. Google Page Rank starts
from number 1 and ends at number 10.
The best websites like google.com
has a page rank of 10.