-EJournals
-Major Preprints

-Reference Resources
-Laboratories
-Data Sources

-Reference Resources
-Observatories
-Image Sources

Major Laboratories:

• Argonne National Laboratory.
• Brookhaven National Laboratory.
• CEBAF, Continuous Electron Beam Accelerator Facility.
• CERN, the European Laboratory for Particle Physics.
• Department of Energy (DOE).
• European Southern Observatory (ESO), including telescope information, clearinghouse of observatory manuals, ESO preprints, etc.
• Fermilab.
• Jet Propulsion Laboratory (JPL).
• Lawrence Berkeley Lab, with the LBL Particle Data Group, which contains the Review of Particle Physics
• Lawrence Livermore National Laboratory.
• Los Alamos National Labs Laboratory.
• Lunar and Planetary Institute (LPI).
• NASA Goddard Space Flight Center
• NASA Marshall Space Flight Center
• NASA Space Science Missions -links to all NASA's space missions which are either under study, in development, operating, or past missions.
• National Institute of Standards and Technology (NIST) Physics Laboratory.
• National Optical Astronomy Observatories (NOAO) Network Services, with the NOAO newsletter, connections to various NOAO observatories, etc.
• Oak Ridge National Laboratory
• Stanford Linear Accelerator SLAC Home Page
• Space Telescope Science Institute.