Advanced Physics Forums
   Intended primarily for physics majors, graduate students, postdocs and faculty. Get meeting information, theoretical and research information and exchange of ideas. Meant for the physics community throughout the world.
   http://www.advancedphysics.org/

Groupsrv.com - Physics Forum
   Discussion for scientists.
   http://www.groupsrv.com/science/viewforum.php?f=1

PhysOrg Discussion Forum
   Applied physics, nanotechnology, quantum physics, and semiconductor technology. Also discussions of the latest physics news.
   http://forum.physorg.com/

Physics Forums
   Bulletin boards on physics and related subjects. Includes related polls and a list of active threads.
   http://www.physicsforums.com/

Scott Watson's Physics FAQs
   A list of FAQs (Frequently Asked Questions) regarding Cosmology, String theory, Relativity and General Physics
   http://www.het.brown.edu/people/watson/pages/resources.htm