Relativity Servers
- NCSA Relativity Group
- Gravitational Physics & Relativity Aristotle University of Thessaloniki.
- HyperSpace at QMW Malcolm MacCallum's Server
- Center for Relativity at Austin, Texas.
- Center for Gravitational Physics and Geometry , Penn State University.
- Pittsburgh Relativity Group University of Pittsburgh.
- Cardiff Relativity Group University of Wales, College of Cardiff.
- Hyperspace at UBC University of British Columbia.
- Mathematical Relativity Australian National University
- Southhampton Relativity Gopher University of Southhampton.
- LIGO California and Massachusetts Institutes of Technology
- Grup de Relativitat i Gravitació Balearic Islands University.
- SIGRAV Societá Italiana di Relativitá Generale e Fisica della Gravitazione.
- CIAR Cosmology Program Canadian Institute of Advanced Research
- Tufts Institute of Cosmology
- Syracuse University Relativity Group
- University of New Brunswick Relativity
- Montana State University Physics Department
- University of Maryland Physics Department
- Imperial College of Science, Technology and Medicine
- University of British Columbia Hyperspace at UBC
- Pisa-VIRGO Interferometer Home Page
- Wake Forest University
- Univeristy of Newcastle Relativity and Quantum Fields
- Relativistic Movies (Tuebingen)
- LSU Gravity Wave Experiment Home Page
- GR : Hyperspace Form interface to search MacCallum's lists.
- GRForm : Old NCSA interface to search MacCallum's lists.
- e-print papers: gr-qc form interface at Los Alamos.
- Matters of Gravity Newsletter: (From Pittsburgh's server)
- Software: GRTensor, Maple V, Wolfram Research, REDUCE, RedLib, CARTAN
- Los Alamos Physics Information service
- Americal Physical Society
- Physics' News
- European Physical Society
- CERN (birthplace of the World-Wide Web)
- HEP Network Resource Center
- SCIENCE AND TECHNOLOGY page at the PLANET EARTH
- Physics servers and services
Astrophysics and Astronomy
- WebStars: Astrophysics in Cyberspace
- NASA home page
- LCA (Laboratory for Computational Astrophysics)
- Center for EUV Astrophysics
- American Astronomical Society
- Astronomical Pictures at cnam.fr
- UC Santa Barbara Cosmology
Supercomputing
- NCSA (National Center for Supercomputing Applications)
- PSC (Pittsburgh Supercomputing Center)
- SDSC (San Diego Supercomputer Center)
- CTC (Cornell Theory Center)
- NCAR (National Center for Atmospheric Research)
- National MetaCenter for Computational Science and Engineering
- NPAC (Northeast Parallel Architectures Center)
- List of Supercomputing Servers