Articles from Digital Photography School - you can sign up to get daily tips by providing your email address.
The Art of Panning - moving your camera in close sync with a moving subject, also covering the use of slow shutter speed where the subject is moving and the background is static. http://digital-photography-school.com/the-art-of-panning
Zoom Blur Technique: http://digital-photography-school.com/using-the-zoom-effect
Another nice tutorial on Panning is at https://expertphotography.com/panning-photography/
Article from Apogee Photo site covering horizontal, sideways, vertical, rotation or with Photoshop...
An article found on the photojojo newsletter:
Camera Tossing: http://content.photojojo.com/inspiration/camera-tossing/