mangup

Blog Google Page Rank is plugin that displays in the footer of Your blog ticket with curent Page Rank For Your Blog. 
You can choose theme of google page rank icon.

Google Page Rank

Blog Google Page Rank is plugin that displays in the footer of Your blog ticket with curent Page Rank For Your Blog..

moallemi

This plugin adds the Google Page Rank and Alexa Rank to Links Page in WordPress admin panel. you can enable or disable them in the options page. 
notice that if you have a lot of links in your Links page, it may take a long time to calculate the ranks.
<ul>
<li>Plugin Sponsored by – <a href="http://www.pcday.ir" rel="nofollow ugc">pcday.ir</a></li>
</ul>

WordPress Link Ranker

This plugin adds the Google Page Rank and Alexa Rank to Links Page in WordPress admin panel.

Google Page Rank vs WordPress Link Ranker