Physics Classroom
The Physics Classroom: Balance and Rotation: Rotational Velocity Interactive
Explore the relationship between the angular and linear velocity for two bugs on a rotating disk.
Khan Academy
Khan Academy: Uniform Circular Motion and Centripetal Acceleration Review
Review the key concepts, equations, and skills for uniform circular motion, including centripetal acceleration and the difference between linear and angular velocity.
Other
Wikibooks: Physics Study Guide
A handy resource that gives an overview of equations and definitions pertinent to an introductory, college-level physics course, with two of its three sections focusing on motion-related topics and principles.