In the last couple of years quadrotors have become a leading platform for aerial robotics. Precision control, maneuverability, and the ability to pack on a payload make quadrotors the goto choice when designing an aerial robot.

ArduIMU Quadrotor Drone

Stanford STARMAC

UPenn GRASP Lab Aggressive Quadrotor

CrazyFlie Micro Quadrotor

Musical Quadrotor

Quadrotors Playing Catch

Construction by Teams of Quadrotor Drones

Kinect-powered autonomous quadrotor

Here come the stylish Scandinavian flying spycams

GRASP Lab Gag Reel