There are many tools to find the pagerank of a website. Do you want to have the tool on your own domain? Well here is source code for a tool that can find pagerank of a website. Store this page as pagerank.php on your domain. Then try out http://www.yourdomain.com/pagerank.php?url=rediff.com to find the pagerank of rediff.
You should store this file on your server to take care of a number of upcoming seo tools that I am going to publish in the next 1-2 months. Online tool to find pagerank of all your internal pages is almost complete and will be published in less than 1 week time.
P.S: I will appreciate a link/stumble/digg/tweet for this page. Thanks in advance.
Good Tryphp source code for a tool to find pagerank of any website or page670|just some value|9