Some search engines look at inbound links. They look at relationships between expert pages (links to other relevant documents) and authority pages (links from expert pages). Authority pages have high ranking value, are relevant to your page and can be seen by the search engines. These are good quality inbound links and are highly desirable for anyone looking to improve page ranking.
Improve and maintain Link Popularity with Inbound Links through the following...
When you know your competition, you learn how to modify your site to improve your page ranking.
Close Window
http://www.webwiseconcepts.com