Ever read the fine print on the various things that you download before clicking on the "accept" button? If not, check out this un-retouched screen shot of terms and conditions that you agree to in order to use a Yahoo widget:
"Operate nuclear facilities, life support or other mission critical applications where human life or property could be at stake"????
Must be pretty powerful widgets! The Sci-Fi Channel could have a heyday making movies about these things.
Download one today and see what makes it tick: http://widgets.yahoo.com