Websites Related to JoyToKey
USB Trigger is an USB device, which allows you to use your own buttons, switches, or relays to simulate joystick button pushes to trigger events on your computer. With JoyToKey combined, you can create your own custom input device to control your PC for a highly customized and streamlined usage.
OneSwitch.org.uk shows interesting examples of how much people can do with just one switch (or two switches). For example, this video shows a live demo of playing Playstation 3 games with two buttons by using JoyToKey.