jQuery Fubar is a website toolbar plugin by Addy Osmani. It’s available as a tutorial and of course as a download, too.
Although not every website would benefit from a toolbar — frankly, I think that no website that isn’t a web app would benefit from a toolbar, — there are other, marketing-related applications for such plugins.
The author goes out of his way to explain the reasoning and writing of the plugin, which is interesting at the very least, and even goes to explain about adding widgets as well as goes the extra mile to suggest other similar plugins.
- Website: http://addyosmani.com/blog/jquery-fubar-how-to-create-a-website-toolbar-from-scratch-and-add-widgets-to-it/