ScreenSpy records what your computer is doing while you are away. It takes a screenshot every second or so and sends it to an FTP server of your choice. It could be used to check which Web sites your children are visiting when you are away or if they are approached by inappropriate individuals on MySpace. It is not stealthy, since the goal is to deter users from misusing the computer, not to catch them in the act.
URL: Malin's TechTalk: ScreenSpy: Record what your Computer is Doing while you are Away