Directory

Keyword = wordpress widget
Category
Listing
Tabbed Widgets
Tabbed widgets allow you to put a tabbed or accordion style nav widget in your sidebar.
http://wordpress.org/extend/plugins/tabbed-widgets/ - detail
Google PR :
How to Create Wordpress Widgets
Great post on how to create your own Wordpress Widgets!
http://www.bloggingtips.com/2009/06/04/create-your-own-wordpress-widget/ - detail
Google PR :