Display mouse coordinates 
Display the current mouse coordinates (relative to the viewable window) in the status bar of your visitor's browser. Not too useful, but quite cool.

Flashing status bar 
Flashes a message in the browser's status bar.

Type-writer document title!
Like the above script, except the effect is applied to your document's title! Requires IE 4+ or NS 6+

Type-writer status scroller
A status bar scroller that displays the text one letter at a time!