I notice that most of the commercial site, their "catalog" and "contact us" have high PR. User will click equally to each navigation, the moment user stay longer time on the particular page, that pages become more important and gain more PR. Do you think time on site and bounce rate will be one of the key point to determine PR?
They do play a part for PR calculation as they are part of the OPSEO factors. However, you will still need to rely on backlinking strategies to power up your site Eventually, you want to rank on Google or to at least make the PR sustainable. Cheers, MingJong
well.. Bounce rate has nothing to do with the PR.. but has everything to do with the quality of the content, website user friendliness, site structure and navigation.. etc.. i have written an article on bounce rate recently.. here is the link: http://www.seozy.com/bouncerate-how-does-it-affect-your-seo/