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NASA
Nasa: Beginner's Guide to Aerodynamics
Includes exhaustive information and a wealth of activities pertaining to aerodynamics and the physics of flight.
University of Maryland
University of Marylad: Computer Tutorials in Physics: Air Resistance
This site has a discussion of a college physics project in which the motion of an object under the influence of air resistance was modeled and studied. Procedure and modeling software are described and the results and the findings are...
NASA
Nasa: Beginner's Guide to Aerodynamics
This site from NASA uses a colorful graphic to illustrate why objects reach terminal velocity. Provides equation for the terminal velocity of an object. Graphic is accompanied by a simple explanation.