Eric Weisstein's Treasure Trove of Physics: - Online encyclopedia of physics terms and formulas. Full searchable, and also browsable alphabetically and by topic. Part of Eric's Treasure Troves of Science.

The Net Advance of Physics: The Net Advance of Physics. Physics, Encyclopedia, Astronomy, Reference, Physics

The Physical World: - Answers to simple physics questions, from New Scientist.

Physics and Astronomy Classification Scheme (PACS): - Hierarchical numbering scheme, developed by the American Institute of Physics, used to identify fields and sub-fields of physics.

Physics Central: With Physics Central, we communicate the excitement and importance of physics to everyone. Physics, Physics Central, Physics in Action, People in Physics, physicists

Physics Central: A page about theoretical physics. physics, black holes, worm holes, dark matter, anti-matter, quarks, four forces

Physics News Graphics: - Diagrams (with captions) appearing in various AIP publications, sorted by category or by date.

Physics on MathPages: - Articles, leaning towards a mathematical description, on a wide range of topics in physics.

Physics Post: - A tutorial and article driven community. Votes, science news and a discussion forum.

Physics Today: Physics Today – Your daily physics news and research source. Physics Today, physics, physics news, research source, physicist, PT, Research

PhysicsWeb: - Physics news, jobs, equipment buyer's guide, and events.

PhysLINK: - Links to physics departments, physical societies, journals, job information, and other physics related information.

Physnet: The Physics Departments and Documents Network: - Serves information from physics departments and institutes worldwide: departmental information, locally stored documents, authoring tools, free access journals, jobs, conferences and education material.

PhysOrg.com: PhysOrg news: latest science and technology news. science, research, technology, physics, nanotech

Usenet Physics FAQ: - sci.physics frequently asked questions with answers. physics, FAQ, frequently asked questions, answers, sci.physics, usenet, Physics

What You Want To Know About Physics: - Summarizes in simple language, without advanced mathematics, the foundations of physics. The index gives direct access to selected topics.

World Year of Physics 2005: - International effort to celebrate the 100th anniversary of the Miraculous Year (1905) and raise public awareness of physics.

Scientific American - Questions That Plague Physics: - A conversation with Lawrence M. Krauss, chair of the physics department at Case Western Reserve University. [PDF] (August, 2004)