A.I.P. HISTORY OF PHYSICS
http://www.aip.org/history/

A.I.P. PHYSICS NEWS
https://www.aip.org/news

ALBERT EINSTEIN ONLINE
http://www.westegg.com/einstein/

AMERICAN ASTRONOMICAL SOCIETY
http://www.aas.org

AMERICAN INSTITUTE OF PHYSICS
http://www.aip.org/

ARXIV.ORG
http://www.arxiv.org

ASTRONOMICAL DATA CENTER
http://nssdc.gsfc.nasa.gov/

ASTRONOMY MAGAZINE
http://www.astronomy.com

ASTRONOMY ONLINE
http://www.eso.org/public/outreach/

ASTROWEB: ASTRONOMY ON THE INTERNET
http://cdsweb.u-strasbg.fr/astroweb.html

CENTURY OF PHYSICS
http://timeline.aps.org/APS/

CONTEMPORARY PHYSICS EDUC PROJECT
http://www.cpepweb.org

FEAR OF PHYSICS
http://www.fearofphysics.com

HALL OF ASTRONOMERS
http://www.AllAboutSpace.com/subjects/astronomy/glossary/Astronomers.html

HEASARC, HIGH ENERGY ASTROPHYSICS SCIENCE ARCHIVE RESEARCH CENTER
https://heasarc.gsfc.nasa.gov/

HUBBLE SPACE TELESCOPE
http://hubblesite.org/newscenter/

IPPEX
http://ippex.pppl.gov

LANL ARXIV.ORG E-PRINT ARCHIVE
http://xxx.lanl.gov

NASA ASTROPHYSICS DATA SYSTEM
http://adswww.harvard.edu

NIST PHYSICS LABORATORY
http://physics.nist.gov

NATIONAL NUCLEAR DATA CENTER, BROOKHAVEN NATIONAL LABORATORY
http://www.nndc.bnl.gov/

NIELS BOHR LIBRARY & ARCHIVES
https://www.aip.org/history-programs/niels-bohr-library

NOBEL PRIZE INTERNET ARCHIVE
http://almaz.com/nobel/nobel.html

OFFICE OF SCIENCE, U.S. DEPT OF ENERGY
http://science.energy.gov/

PHYSICS WORLD
http://physicsworld.com/cws/home

REVIEW OF PARTICLE PHYSICS
http://pdg.lbl.gov/

SKYMAPS
http://www.skymaps.com

SLOAN DIGITAL SKY SURVEY
http://skyserver.sdss.org/dr1/en/

STANFORD LINEAR ACCELERATOR CENTER (SLAC) RESEARCH LIBRARY
http://www.slac.stanford.edu/library/

UNIVERSITY CORPORATION FOR ATMOSPHERIC RESEARCH
https://www2.ucar.edu/

YOUR WEIGHT ON OTHER WORLDS
http://www.onlineconversion.com/weight_on_other_planets.htm