ya i know i am on right place..actually i want to know that what searching criteria follows by a search engine..do all search engines have same database or server?plz reply me as you know
Google, Yahoo and MSN will each have their own calculations for deciding on PR and give wieghting to various factors. No one can tell you the exact forumula but we know that building backlinks to your site on do follow blogs, submitting to article directories and link exchanges all make a difference.
Each Search Engine is unique in the way they rank web pages. Google gives more importance to link building while Yahoo prefers keyword density and the list would go on and on. In a situation like this it becomes imperative that you select the search engine that accounts for bulk of your traffic. Having done that you could start optimizing your website accordingly.
yahoo, msn and google have different page optimization , but the are the on and off page factors...but ranking on google the two se will follow, but not that high just enough.