ABRA.info A BRAin extension...software for making sense. 
Located in Tucson, Arizona

Cascading menus demo page

Selected category:

Choose Open Directory Project Category » 

The purpose of this demo is to show the ability of a non-technical user to rapidly and easily select a specific category out of the approximately 734,000 available Open Directory Project categories.

At abra.info we combine this capability with a bookmarklet that allows users to quickly annotate and categorize any URL on the web.

For more information, contact Golda (gv) at Webglimpse.net