I just ran into an excellent plugin for WordPress that should be included with every install.
The default WordPress installation offers a basic Text Widget editor that requires HTML knowledge and experience (basically the WordPress editor in ‘Code’ view). When handing off the WordPress installation to clients with little to no HTML experience, it is important to include WYSIWYG edtiors wherever possible.
Update 7/7/2011: The WYSIWYG Widgets plugin does just that. It’s simple to install and can easily be added to any sidebar as a widget. I can confirm that this widget works with WordPress 3.2.
The Rich Text Widget plugin does just that. It’s simple to install and can easily be added to any sidebar as a widget.