Eric Weisstein's Treasure Trove of Physics - http://scienceworld.wolfram.com/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 - http://web.mit.edu/redingtn/www/netadv/welcome.html MIT resource providing discussions at various levels of sophistication that cover all areas of physics.
Physics on MathPages - http://www.mathpages.com/home/iphysics.htm Articles, leaning towards a mathematical description, on a wide range of topics in physics.
Physics.org - http://www.physics.org Searchable database of physics resources from the Institute of Physics which matches a person's question, age and knowledge profile to handpicked sites. Also includes the Physics Life animation.
Physics and Astronomy Classification Scheme (PACS) - http://publish.aps.org/PACS/ Hierarchical numbering scheme, developed by the American Institute of Physics, used to identify fields and sub-fields of physics.
Physics Post - http://www.physicspost.com/ A tutorial and article driven community. Votes, science news and a discussion forum.
Physics News Graphics - http://aip.org/mgr/png/ Diagrams (with captions) appearing in various AIP publications, sorted by category or by date.
Physics Today - http://www.physicstoday.org/feed.xml News, feature articles, reviews, obituaries, and other items from the monthly magazine for the physics community.
Physics Today - http://www.physicstoday.org/ The flagship publication of the American Institute of Physics (AIP). Provides feature articles, news stories, analyses, book and product reviews, a searchable job database, and obituaries.
Scientific American - Questions That Plague Physics - http://genesis1.phys.cwru.edu/~krauss/0804082.pdf A conversation with Lawrence M. Krauss, chair of the physics department at Case Western Reserve University.
PhysLINK - http://www.physlink.com/ Links to physics departments, physical societies, journals, job information, and other physics related information.
Physics Central - http://www.physlib.com/ A page on modern physics, such as quantum mechanics and black holes, and some mathematics.
World Year of Physics 2005 - http://www.wyp2005.org/ International effort to celebrate the 100th anniversary of the Miraculous Year (1905) and raise public awareness of physics.
What You Want To Know About Physics - http://kr.cs.ait.ac.th/~radok/physics/ Summarizes in simple language, without advanced mathematics, the foundations of physics. The index gives direct access to selected topics.
TheTangentBundle Physics Project - http://www.physics.thetangentbundle.net/wiki/ An experimental wiki-based collection of user-contributed articles on graduate level physics topics including subjects such as string theory, quantum field theory, mathematical physics and quantum mechanics.
Physnet: The Physics Departments and Documents Network - http://physnet.physik.uni-oldenburg.de/PhysNet/ Serves information from physics departments and institutes worldwide: departmental information, locally stored documents, authoring tools, free access journals, jobs, conferences and education material.
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