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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/
Physics & Astronomy Discussion Forums
Discussion forums devoted to physics & astronomy, with a concentration on eletricity and magnetism.
http://physicsastronomy.com/
Physics and Astronomy Forums
A series of different threaded forums for discussing famous people as well as topics related to astronomy and astrophysics.
http://astronomyphysics.com/
Physics Post
A tutorial and article driven community. Votes, science news and a discussion forum.
http://www.physicspost.com/
Theoretical Physics
Archives of an discussion group for discussing related topics.
http://research.spinweb.com/
