One of the technologies that affect the World Wide Web our days is Google's unique algorithm of ranking pages for their search engine. Still, in time it became a general ranking for a website's value.
There are many factors that affect this ranking, still, the most important is the "vote" given to it by other websites. Every link on a web page acts like a voter for the website that is linked to. In a simplified version, the more "votes" a page gets, the higher is its page rank. Still, Google PageRank is much more complicated than this.
First, it takes into account the PageRank of the "voter" as well, also the page rank of the top level page of the domain that page is hosted on and even the content of the page.
Aside from the "incoming links" metric, Google also uses various techniques for its unique technology, for example a link from a website that is related to your website and the page it's linked to (from the same niche) will be higher ranked. Google also uses various techniques from fighting techniques such as "Google bombing" that are trying to manipulate PageRank.
In addition, in 2005, Google proposed a special "rel=nofollow" tag for links to indicate pages which Google crawler will not follow, trying to solve the problem caused by comment spamming in blogs.
Related links:
http://www.google.com/technology/http://en.wikipedia.org/wiki/Page_rank
Posted by: Indy on March 17, 2006 at 15:59.