The American Institute of Physics offers quite a bit of information on current trends in physics, and the role physics can play in modern society. It is also home to a host of professional physics societies, many of which are listed below.
American Association of Physicists in Medicine
American Association of Physics Teachers
American Crystallographic Association
The AIP is also home to the Society of Physics
Students, a group promoting
the development and interests of students in the sciences - primarily Physics.
(SEDS) or "Students for the Exploration
and Development of Space" is
a great site for astronomical images and links to other Astro sites
American Journal of Physics Editor's
(IEEE) or "The Institute of Electrical and Electronics Engineers, Inc." (Electrical Engineering)
(SPIE) or "The International Society of Optical Engineers." (Photonics - which means almost everything having to do with light.)