http://www.iop.org
2. PhysLINK
http://www.physlink.com
3. PhysicsWeb
http://www.physicsweb.org
4. American Institute Of Physics
http://www.aip.org
5. Los Alamos National Laboratory
http://www.lanl.gov
6. The American Physical Society
http://www.aps.org
7. SLAC
http://www.slac.stanford.edu
8. US Department of Energy
http://www.energy.gov
9. CERN
http://www.cern.ch
10. European Physical Society
http://www.epfl.ch