Complete instructions for this episode of Weekend Projects can be found at http://makezine.com/projects/raspberry-eye-remote-servo-cam/
Install the Picam image on a Raspberry Pi, assemble a 3D-printed enclosure, and hack two servomotors to enable Pan & Tilt abilities for a compatible USB webcam. Connect with the "Raspberry Eye" from anywhere in the world and remotely maneuver the direction of the camera.