International
http://www.mcs-international.org/
Australia
Allergy and Environmental Sensitivity Support and Research Association Inc. http://www.aessra.org/ (Melbourne, Australia)
Australian Chemical Trauma Alliance http://members.ozemail.com.au/~actall/MCS%20page4.htm
Poisoned Homestead http://poisoned.homestead.com/
Austria
Austrian Medical Association Guidelines for the Diagnosis and Treatment of EMF-Related Health Problems and Illnesses http://www.magdahavas.com/austrian-medical-association-guidelines-to-diagnosing-and-treating-patients-with-electrohypersensitivity/ and http://freiburger-appell-2012.info/media/EMF%20Guideline%20OAK-AG%20%202012%2003%2003.pdf
Canada
Environmental Health Association of Nova Scotia http://www.environmentalhealth.ca/
Environmental Health Association of Ontario http://www.ehaontario.ca/ (down)
Environmental Health Association of Quebec http://www.aeha-quebec.ca/
Environmental Health Association of Alberta http://www.eha-ab.ca/
Environmental Health Association of British Columbia http://www.ehabc.org/
May12th International Awareness website http://www.may12th.org/
Denmark
MCS-Danmark http://mcs-danmark.dk/home/
EBD, the Danish Association for the Electromagnetically Hypersensitive http://www.el-allergi.dk/ (down?)
European Union
Measures Taken by European Countries for Multiple Chemical Sensitivity http://www.scribd.com/doc/46128619/Clark-H-2010-Translation-of-Danish-Health-2010-MCS-Measures-taken-by-European-Countries
EMF Groups http://www.feb.se/FEB/Addresses.html
EHS & MCS Research and Treatment European Group http://www.ehs-mcs.org/en/ (Most is in French.)
Europe ME Alliance http://www.euro-me.org/about.htm (Based in Denmark, links to groups in Iceland, Ireland, Finland, Germany, Belgium, Spain, Holland, Italy, UK, Norway, Sweden, Switzerland. One ME symptom is often MCS.)
Finland
(Elöverkänsliga i Finland rf)(Electrical Hypersensitives in Finland) Website link dead.
Germany
Chemical Sensitivity Network http://www.csn-deutschland.de/home.htm
Chemical Sensitivity Network in English http://www.csn-deutschland.de/blog/en/
ARBEITSKREIS FÜR ELEKTROSENSIBLE e.V. (Action group for Electrically sensitive) http://www.w-lisseck.de/aes/index.html
Japan
Japanese Ministry of Health http://www.dis.h.u-tokyo.ac.jp/scripts/search/ICD10_searchw.asp?searchstring=T65.9 (This is the ICD-10 code for MCS I think.)
Luxemburg
AKUT a.s.b.l. (Aktionsgruppe für Umwelttoxikologie)(Action Group for Environmental Toxicology) http://www.akut.lu/
Netherlands
http://www.het-abc-van-mcs.nl/
Norway
FORENINGEN FOR EL-OVERFØLSOMME (The Association for the Electrically Oversensitive) http://www.felo.no/
Spain Ligasfa http://www.ligasfc.org/
United States
HEAL of Southern Arizona http://www.healsoaz.org/healsoaz.htm
Ohio Network for the Chemically Injured http://www.ohionetwork.org
Ability Maine http://www.abilitymaine.org/resource/guides/mcs.html
Environmental Health Network of California http://ehnca.org/
Environmental Illness Network Minnesota http://mn.environmentalillnessnetwork.org/
Washington State MCS Network http://wsmcsn.s5.com/
Chicago CFCCC http://www.mcshealthenviron.org/
ECHO Connecticut http://echomcsct.homestead.com/
Rocky Mountain Environmental Health Association http://www.rmeha.org/
Massachusetts Association of the Chemically Injured http://www.maci-mcs.org/
Boston Self Help Center MCS http://www.mhhm.org/bshc.html
Texans for Environmental Health http://rel.txeh.org/
Chemical Sensitivity Disorders Association http://www.chemsense.com/ MCS support group Maryland, Wash. D.C., and northern Virginia.
MCS-Hawaii http://health.groups.yahoo.com/group/mcs-hawaii/
MCS-Nebraska http://health.groups.yahoo.com/group/MCS-Nebraska/
MCS-Michigan http://health.groups.yahoo.com/group/mcs-michigan/
Midwest Oasis MCS http://health.groups.yahoo.com/group/MO-MCS/?yguid=198799829
Vermont MCS https://safecanarynest.org/mcs-in-vermont/
US Regional Groups of Interest to Persons with MCS
Washington State Toxic Free Legacy Collation http://toxicfreelegacy.org/
Toxic Free North Carolina http://www.toxicfreenc.org/
Louisville Charter for Safer Chemicals : http://smartpolicyreform.org/the-charter/the-louisville-charter
Connecticut Energy Alternatives http://yellowcanary.com/energy/connecticut/
Northwest Center for Alternatives to Pesticides http://www.pesticide.org/
Pesticide Action Network (North America) http://www.panna.org/
Californians for Pesticide Reform http://www.pesticidereform.org/
Online MCS Community (I have found online community to be less than helpful.)
Green Canary http://health.groups.yahoo.com/group/GreenCanary/
Toxic Injuries http://health.groups.yahoo.com/group/MCS-Toxic-Injuries/
MCS International forum board http://www.mcs-international.org/phpBB3/index.php
Chemical Sensitivities Support Form http://www.curezone.com/forums/f.asp?f=469
Spark Team MCS http://www.sparkpeople.com/myspark/groups_individual.asp?gid=20650
Canary Singles http://www.canarysingles.com/
Helpful Blogs by Canaries
Linda Sepp Life with Multiple Chemical Sensitivity: The importance of safe housing http://lindasepp.wordpress.com/ Probably the most helpful MCS blog.
Multiple Chemical Sensitivities http://multiplechemicalsensitivity.wordpress.com/ Blog of the editor of the magazine Sensitivity Matters, published by the Allergy and Environmental Sensitivity Support and Research Association Inc. in Australia
