How the Physics of Football Works - There's a reason why some passes miss their target, and others land right in the receiver's hands. Offers a view of the game from different angle. - http://science.howstuffworks.com/physics-of-football.htm
Principles of Aeronautics - Discusses the physics of sports involving aerodynamics, including tennis, golf, baseball, javelin, discus, frisbee, boomerangs, bicycling, race cars, sailboats, and swimming. - http://wings.avkids.com/Book/Sports/
Why Does a Golf Ball Have Dimples? - An article describing the history and aerodynamics of a golf ball. - http://wings.avkids.com/Book/Sports/instructor/golf-01.html
Slam Dunk Science - Sport research lab in the science classroom. Offers a look at shoe design, lab tools, and activities. - http://www.scire.com/sds/sdsmenu.html
Sport Science at Exploratorium - Examines the most popular team and recreational sports, including baseball, cycling, skateboard, and hockey. Also includes highlights on bouncing balls, rock climbing, and facts. - http://www.exploratorium.edu/sports/