Desktop Google Page Rank Monitor is an easy-to-use software product for storing web sites and monitoring their Google PR values. The program can sort sites by PR value, check using a custom datacenter, provides automatic proxy support, and much more. Users can also add notes for web sites stored, and manage sites with a number of other handy options.

One of those tools I cant live without as you can check everyone of your sites PR with the click of one button. Makes it real easy when it comes to the updates.