With the release of WordPress 2.3, I had to make a few small modifications to my plugin. The main one being that they have removed support for link sub-categories. The latest version can be found on the wp-plugins.org site.
WordPress Plugin Development Cookbook, Second Edition
Interested in WordPress plugin development? Check out my newly updated book to learn through detailed recipes.
Developed using Take control of your links and display them any way you want on your site
Create simple pop-up dialogs
List upcoming events in a handy sidebar widget
Create great programming schedule grids for your site
Cross-link article translations between two WordPress sites
Add a bug tracking system to your WordPress site
Add a dynamic calendar to advertise community events to your site
Allow visitors to see a full listing of your entire iTunes music collection