Classical Mechanics
Two-Dimensional Kinematics: Motion in a Plane
The equations necessary to analyze motion in a two-dimensional plane.
Newton's Laws of Motion
Another good introduction to Newton's Laws of Motion, including material on the mathematics involved, applications, and problem-solving methods such as the drawing of free-body diagrams.
Journal: Classical & Quantum Gravity
This online journal provides current research in both classical and quantum gravity free to the public.
FMA Live!
Let the laws of motion rock your world! This multimedia entertainment group tours schools and teaches students about the laws of motion (FMA -> Force Mass Acceleration). Their site includes information on some simple experiments that can be performed to demonstrate the laws of motion.
Newton's Law of Gravity
An introduction to the law of gravity, as developed by Newton and revised over the years. This provides the foundation for any significant work in understanding gravity, from falling objects to planetary motion.