I want to know whats the difference between say PR3 domian and PR3 website. Id it same. I have a new website.If I buy PR3 domain and use this domain to run my new website,then will the site become PR3 site. Plz clarify this point
PR refers to Page Rank. Each page has its own PR. When people talk about a site's PR they typically mean the index page PR. A high PR page will pass on some PR to pages that link from it - so it will help your back pages - but I don't know how much.
Myths and misconceptions on PR can be cleared at http://www.free-seo-news.com/newsletter213.htm#facts