PR Checker makes link list building easier than ever.
You can use this plugin to build a link list with info on them for your readers. These info are automaticaly retrieved and are:
*Google PR *Technorati authority *Alexa Rank *Feedburner readers
From the admin interface you can add/remove links and issue updates on their stats. You can also set if the link that will be publicaly displayed will be "follow" or "nofollow".
Beware that updating the stats on the sites can be a very long process taken on the server. This means that if you issue a total update it might take some time before the page is done loading. That is not caused because the script is stuck but because it is retreiving info that takes time. Be patient and don't do this every day. A good practice would be once a month.