Resources 

Organizations

American Institute of Physics
American Physical Society
NASA
American Center for Physics
Large Hadron Collider

Careers

Physics Today Job Site 
E-print Archive
CERN Articles & Preprints
NASA Astrophysics Data System
Particle Data Group
Astronomy Picture of the Day

News, Questions and Answers

Physics News
PhysLINK
Physics Central
Eric Weisstein's World of Physics
Physics Web
FAQ - Usenet Physics
Physics 2000

Humor

Physics Humor
Insultingly Stupid Movie Physics