~2 minute video
Brief overview of the project.
Longer documentation of how the project works, what you did etc,
Clear description of what each team member did
Examples:
http://arduino.cc/blog/2012/11/30/robot-vision-arduino-bluetooth-processing-facetime/
http://robofun.ro/create/the-social-drink-machine/
http://arduino.cc/blog/2012/10/25/diy-less-expensive-thermal-imaging-camera/