In 2014 and beyond, it's no longer essential to know what the page rank of a webpage is anymore (though it would be useful, and it's more substantive when it comes to buying authority inks). The IM world now knows how important the authority of a page or link is for ranking purposes compared to when PR was launched, and has replacement tools (backlink comp checkers, DA, PA, TF etc) we can live with to build strong backlink profiles. If you have a couple of decent SEO toolbars on your browser (SEOQuake, RDS, Moz, etc) you can get a fast idea of any page's authority without even seeing the PR. In general and in the long run, the more things we have freed ourselves from being dependent on Google for, the better.