If you have a computer with Windows Vista on it you may or may not know about the sidebar.  The sidebar is a application bar that sits off to the right of your screen.  It allows you to run mini applications and have the available to you whenever you are on the computer.

One of my favorite gadgets is the Impact Bible Passage gadget.  This gadget shows you a new Bible verse every day.

More details (and similar applications are available on the impact website.