Asia-Pacific EPR/ESR Society
Biomedical EPR Group at the University of Wales College of Medicine
Biophysics Group, Institute of Physics, Warsaw University of Technology, Warsaw, Poland
Bruker WWW Server
Center for EPR Imaging for in Vivo Physiology, University of Chicago
Center for Magnetic Resonance (CMR), Univ. of Queensland, Australia.
The Compton Group, Physical & Theoretical Chemistry Laboratory, Department of Chemistry,      University of Oxford, Oxford, UK
Dartmouth EPR Center, Hanover, New Hampshire
Department of Biomedical Physics, University of Aberdeen, Aberdeen, UK
EMR at NHFML, Florida State University
EPR Center for the Study of Viable Biological Systems, Dartmouth Med. School, NH
EPR at ETH Zürich
EPR Group, Department of Chemical Physics, Weizmann Institute of Science, Rehovot, Israel
EPR Group, University of Pisa, Italy
EPR Laboratory at the Department of Physics, University of Oslo, Norway
EPR spectroscopy - Max Planck Institute for Polymer Research, Mainz, Germany
EPR at the University of Geneva
Illinois EPR Research Center
International Society for Free Radical Research (SFRR)
International Society of Magnetic Resonance
KyoSpin: High Frequency EPR Instruments
Lab of Molecular Biophysics at NIEHS
Magnetic Resonance (EPR/ENDOR) group, Department of Solid State Sciences, Ghent University,      Ghent, Belgium
MM-Wave and Terahertz Technology Group at University of St. Andrews, Scotland
National Biomedical EPR Center at Milwaukee
NIH Research, Training & Scientific Resources
Research Group of Professor Moebius, Institut fuer Experimentalphysik, Fachbereich Physik der      Freien Universitaet Berlin, Germany
SIMARC - Swedish Interdisciplinary Magnetic Resonance Center
Spin Trap Database at NIEHS
Web Crawler EPR page