What's the easiest way to monitor what your kids or employees are doing online? Use SnoopStick. This must-have gadget is easy to use. Just stick SnoopStick into the USB port of the computer you want to monitor and run its 60-second installation program. Once you place SnoopStick into your computer, it will start displaying real-time activity of the computer you are monitoring, such as Web site visits, e-mail activity and IM conversations. Keep in mind that your target will have no idea that you are monitoring his computer because SnoopStick is completely invisible.