Physics

The AIP works to" advance, promote and serve the physical sciences community for the benefit of humanity".

The APS works to advance and diffuse the knowledge of physics for the benefit of humanity, promote physics, and serve the broader physics community.

CitizenScience.gov is an official government website designed to accelerate the use of crowdsourcing and citizen science across the U.S. government.

Khan Academy Physics includes videos on a variety of topics.

Open and online physics courses.

Here you can find the latest news, images and videos from America's space agency,

A Weekly Illustrated Journal of Science; Nature : International Weekly Journal of Science

PLOS is nonprofit, Open Access publisher empowering researchers to accelerate progress in science and medicine by leading a transformation in research communication.

Science Explorer (SciX) is a digital library portal for researchers in astronomy, Earth science, heliophysics, physics, and planetary science. The Smithsonian Astrophysical Observatory (SAO) operates SciX for the scientific community under a NASA cooperative agreement.

Physics I, II, and III lectures by Prof. Walter Lewin of MIT.