American Association of Physics Teachers - To enhance the understanding and appreciation of physics through teaching, it includes teaching resources, projects, publications, public policy, grants and awards.
Astronomy Unbound - Provides information on basic physics, the solar system, the sun, measuring the universe, the nature of stars and galaxies, and theories on origins and evolution. Also features a glossary of astronomical terms, acronyms, diagrams, photographs, and a periodic table of the elements.
Contemporary Physics Education Project - CPEP materials present the current understanding of the fundamental nature of matter and energy, incorporating the major research findings of recent years.
Net Advance of Physics - Review articles and tutorials in an encyclopedic format from MIT.
Physics Central - The American Physical Society teaches how the world works, answers questions, and provides daily updates of physics in the news.
Principles of Flight - Pilot’s Web offers aviation terms, physics principles of flight, air navigation and weather sense as well as motion.