Today is a great day ( :P ): I have added Google Page Rank calculation on the sidebar (→) of my weblog. It's possible thanks to the [en:PHP] class "Google Page Rank Checker" by Emre Odabas, hosted on PHPClasses (the most important source-of-code-and-snippets for PHP Developers).
The class calculates "only" the integer value (between 1 and 10): the graphic representation is by me.
Actual Page Rank? 5!!! O_o