WordPress.org

For support or feedback, go to the official Hierarchical Link Categories plugin page

This plugin requires WordPress 3.1

Finally, Choose Parent Categories for Link Categories

One of the problems with WordPress' built-in blogroll/bookmark functionality is that you can't choose to create nested categories (sub-categories) for the links. This is silly, and makes the functionality nearly useless.

Treat yourself to some nested blogroll categories

This plugin allows link categories to have parent categories (makes link categories "hierarchical"), saving you time and maybe even saving the world.

You may also be interested in:

• Rich Text Tags - Enable rich text editing of tags, categories, and taxonomies. Add value to your tag & category pages and improve your website's SEO.
• Links in Captions - Add links in your captions (which isn't possible by default). A very handy plugin.