URL Rotation Plugin is the best URL Rotator I’ve found for WordPress. It allows you to setup specific jump URLs such as yourdomain.com/magneticbracelets, then specify a group of URLs to rotate for that link and evenly distribute clicks between them. If you wanted to test out 5 different landing pages for magnetic bracelets to see which one made you the most money per 100 clicks this would be a great way to do it.
Why use a URL Rotator? – To Test Landing Pages! You can buy the worst traffic on earth to test landing pages using URL Rotators. You can start shelling out for top dollar clicks on Google once you know which product pages generally convert best. Sure there are a lot of variables and traffic from different places converts differently but if you test 5 URLs and the worst one gives you 1 sale per 100 clicks and the best one gives you 5 , you’re going to probably always see much better conversions on the latter page.

Need a WordPress plugin to manage your Google Adsense ad placements? If you are looking for something simple and fast with a ton of flexibility, the
Recent Comments Widget Plugin For WordPress
The Get Recent Comments wordpress plugin written by Krischan Jodies allows you to format and control all aspects of your Recent Comments display in your sidebar widget.
With support for gravatars, options to exclude specific categories, order comments by date or postings and handling trackbacks in separate lists, this plugin basically is the answer to your prayers if you want to show off the latest 4 or 5 recent comments in your sidebar.
I’ve been using the Recent Comments plugin for several months through various wordpress core file updates and it hasn’t let me down yet.