AACG (American Association for Crystal Growth)
ACA (American Crystallographic Association)
AIP (American Institute of Physics)
APS (American Physical Society)
APS Career Center (American Physical Society)
The ComPADRE Digital Library
The Huntsville Electro-Optical Society
The Nucleus
Optics.org
OpticsNotes.com
The Institute of Physics
Physics Departments (also Math and Engineering)
Physics Central
The Physics Source
Physics Today
Physics Today Job Site
Physics To Go
PhysNet (European Physical Society)
The Internet Pilot to Physics
The Treasure Trove of Physics