Center for History of Physics - The Center for History of Physics at the American Institute of Physics has a mission to preserve and make known the history of modern physics and allied sciences including astronomy, geophysics, optics, and the like.

http://www.aip.org/history/

Contributions of 20th Century Women to Physics (CWP) - Contributions of 20th Century Women to Physics: Historical archive of profiles of 20th century women who have
made original and important contributions to physics.

http://cwp.library.ucla.edu/

The Physics Museum - The Physics Museum at The University of Queensland.

http://www.physics.uq.edu.au/physics_museum/

History Page

http://history.hyperjeff.net/

A Century of Physics - The American Physical Society presents "A Century of Physics".

http://timeline.aps.org/APS/Timeline/

Museum of Physics Department - Museo di Fisica di Napoli.

http://www.na.infn.it/Museum/museum.htm

History of Physics Archives - History of Physics Archives.

http://fisicavolta.unipv.it/asf/

Forum on the History of Physics

http://www.aps.org/units/fhp/index.cfm

Center for History of Physics Newsletter - History Center Newsletter - American Institute of Physics.

http://www.aip.org/history/web-news.htm

CERN Historical Archives - CERN Archive.

http://library.cern.ch/archives/archnet/

Lawrence and His Laboratory - Lawrence and His Laboratory.

http://www.lbl.gov/Science-Articles/ResearchReview/Magazine/1981/

National Atomic Museum - Welcome to the National Atomic Museum, soon to be renamed the National Museum of Nuclear Science and History.

http://www.atomicmuseum.com/

The Great Magnet, the Earth - Introduction to web site on the history of geomagnetism, marking the 400th anniversary of "De Magnete" by William Gilbert.

http://www-spof.gsfc.nasa.gov/earthmag/demagint.htm

Sketches of the History of Electromagnetics - Sketching the History of Classical Electromagnetism.

http://history.hyperjeff.net/electromagnetism

Historical Beginnings of Theories of Electricity and Magnetism - Historical Beginnings of Theories of Electricity and Magnetism.

http://galileoandeinstein.physics.virginia.edu/more_stuff/E&M_Hist.html

Los Alamos Nuclear Laboratory - Research Library: History - Links to documents and resources about Los Alamos history.

http://library.lanl.gov/infores/history/

The life of Andrei Sakharov, by the AIP Center for History of Physics  - The life of Andrei Sakharov, by the AIP Center for History of Physics.

http://www.aip.org/history/sakharov/

Archive of Nuclear Data - NRDC: Archive of Nuclear Data.

http://www.nrdc.org/nuclear/nudb/datainx.asp

History of Nuclear Power Plant Safety - History of Nuclear Power Plant Safety.

http://users.owt.com/smsrpm/nksafe/

History Topic: General Relativity 

http://www-history.mcs.st-andrews.ac.uk/HistTopics/General_relativity.html

History Topic: Special Relativity 

http://www-history.mcs.st-andrews.ac.uk/~history/HistTopics/Special_relativity.html

History of General Relativity - History of general relativity.

http://en.wikipedia.org/wiki/History_of_general_relativity

History of Special Relativity - History of Special Relativity.

http://en.wikipedia.org/wiki/History_of_special_relativity