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.
CrazyFlie Micro 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