External Resourses

HyperPhysics - Circular Motion

Monterey Institute - Uniform Circular Motion
Multimedia presentation.

Wikipedia - Uniform Circular Motion
Wikipedia's article on uniform circular motion presents a clear summary of the important concepts. (Wikipedia is uneven but some of the articles are quite useful).

HyperPhysics - Centripetal Force

NTNUJAVA simulations - Simple Harmonic Motion and Uniform Circular Motion
Nice JAVA applet illustrating a useful conceptualization of uniform circular motion and simple harmonic motion.