National Headache Foundation 
Information on headache causes and treatments, a support group list, a state list of NHF physician members (on request) and a quarterly newsletter.
http://www.headaches.orgHeadache Stop 
Houston, Texas, dentist offering nonsurgical TMJ (Tempro Mandibular Joint Syndrome) of the jaw treatment for migraine headaches and headache pain relief.
http://www.headachestop.com/
The International Headache Society 
Information for anyone interested in the diagnosis and treatment of headache. The IHS sets the clinical standards for diagnostic criteria and drug trials used by headache specialists around the world.
http://www.i-h-s.org/
Emergency Treatment of the Headache Patient 
A guide for physicians and health care professionals written by Merle L. Diamond, M.D., Associate Director, Diamond Headache Clinic - Internal Medicine Department, Columbus Hospital, Chicago, Illinois.
http://www.usdoctor.com/sym2.htm
HealthCentral: Headaches and Migraines 
Provides searchable, detailed information on types of headaches, treatments, drugs, headache-related news, and links.
http://www.healthcentral.com/Centers/OneCenter.cfm?Center=Migraines
Headache and Migraine Information 
A resource for Australians that includes links to physicians.
http://www.headache.com.au
Headache.net 
In-depth articles and streaming Webcasts featuring leading headache experts.
http://www.headache.net
Neuroland Headache Index 
Resources for health care professionals concerning treatment of headache.
http://neuroland.com/ha/
Migraine Health Center - DrDonnica.com 
Includes articles, myths, FAQs, press releases and links to other resources tailored for a female audience.
http://www.drdonnica.com/display.asp?article=67
Headache Impact Test 
Interactive questionnaire for analyzing the lifestyle impact of headaches.
http://www.headachetest.com
Robbins Headache Clinic 
News and information on headaches and treatments provided by a widely recognized physician and author.
http://www.headachedrugs.com/
Life Beyond Headaches 
Natural health specialist, author, and doctor of chiropractic offers information on non-drug treatments for chronic headache.
http://www.beyondheadaches.com
Headache During Sex May Be Serious 
A single article discussing coital headache.
http://www.drdaveanddee.com/headache.html
Self-Help for Headaches 
A simple voice therapy by streaming audio or telephone provided by an unlicensed psychotherapist who claims success in the treatment of headaches.
http://www.psychresearch.com/headache.html
AHS: American Headache Society 
A professional society of health care providers dedicated to the study and treatment of headache and face pain. AHS brings together physicians and other health providers from various fields and specialties to share concepts and developments about headache and related conditions.
http://www.ahsnet.org/
NTI - Tension Suppression System 
A non-drug therapy with FDA approval for the treatment of migraine, it also is used by patients with chronic tension-type headache. Includes information on development, use and effectiveness of the device, as well as a list of dentists who can custom fit it.
http://www.nti-tss.com/
NYHeadacheDoctor 
Provides information on headaches and facial pain. Includes a symptom check list, danger signs, treatments, women's issues and childhood headaches.
http://www.nyheadachedoctor.com
InteliHealth: Headache 
InteliHealth by Aetna - Featuring Harvard Medical School's consumer health information. Headache news, feature articles, general information and links.
http://www.intelihealth.com/IH/ihtIH/WSIHW000/20933/20933.html
National Institute of Neurological Disorders and Stroke - Headache Information 
Federal government's research programs on chronic headaches. Online publications about headache and links to current clinical trials.
http://www.ninds.nih.gov/health_and_medical/disorders/headache.htm
Help for Headaches and Migraine 
News, educational, support and advocacy resources for those with headache disorders and migraine.
http://helpforheadaches.com
HealthAtoZ Headache 
General information about the causes and symptoms of various types of headaches.
http://www.healthatoz.com/healthatoz/Atoz/dc/caz/neur/hach/hach_gen_ovw.jsp
Discovery Health - Headache Center 
Offers tips for becoming headache-free, treatments for migraines, tension and cluster headaches, a quiz, and a timeline of headache treatments through the ages.
http://health.discovery.com/centers/headaches/headaches.html
Dr.Rao 
New York physician discusses the causes and symptoms of migraine, as well as alternative treatments.
http://www.drraomd.com/encyclopedia/disease/headache.htm
eMedicine Health - Worst Headache of Your Life 
Consumer health resource center providing information on the causes, symptoms and treatment of headaches from WebMD.
http://www.emedicinehealth.com/articles/9452-1.asp
NINDS - SUNCT Headache Information Page 
Information sheet about Short-lasting, Unilateral, Neuralgiform headache attacks with Conjunctival injection and Tearing. Compiled by National Institute of Neurological Disorders and Stroke.
http://www.ninds.nih.gov/disorders/sunct/sunct.htm
New Hope for Headache Sufferers 
How to recognize, prevent, and treat a largely unsuspected cause of headaches--adverse conditions in the gastrointestinal tract.
http://www.webspawner.com/users/newhopeforheadaches/
Overcoming Food Intolerances 
A chemist describes a food treatment method for preventing headaches and fatigue related to food intolerance.
http://www.foodheadache.com/
Headaches - HealthBoards.com Message Boards 
Open discussion board dedicated to headaches.
http://www.healthboards.com/boards/forumdisplay.php?f=62
Headache Center - MayoClinic.com 
Headaches and migraines - information on causes, diagnosis, medications and treatments.
http://www.mayoclinic.com/health/headaches/HE99999
MedlinePlus Medical Encyclopedia: Headache 
A resource provided by the U.S. National Library of Medicine and the National Institutes of Health.
http://www.nlm.nih.gov/medlineplus/ency/article/003024.htm
MedicineNet.com: Headaches 
Articles written by medical doctors about the different types of headaches - migraine, tension, cluster, menstrual, and spinal headaches - and their causes, symptoms, diagnosis and treatment.
http://www.medicinenet.com/headache/article.htm
MedlinePlus: Headache 
Information related to headache and links to additional resources from the National Institute of Neurological Disorders and Stroke.
http://www.nlm.nih.gov/medlineplus/headache.html
About Headaches & Migraines 
Large collection of information, much of it unique content.
http://headaches.about.com/
Headache & Migraine on Yahoo! Health 
Large collection of articles and links.
http://health.yahoo.com/topic/headache;_ylt=AonXLKtkQi5OcGBJVzvcwNMCt8UF
WebMD Migraines and Headaches Center 
Many articles related to headaches and migraine.
http://www.webmd.com/migraines-headaches/default.htm
Headache News & Migraine News from Medical News Today 
The latest headache, migraine news headlines published daily.
http://www.medicalnewstoday.com/sections/headache-migraine/
American Council for Headache Education 
ACHE is a national non-profit patient/physician partnership providing support for sufferers of chronic headache while working to educate the public. Includes news, patient information, tools and resources.
http://www.achenet.org/
Migraine Prevention: stop Migraine Symptoms, avoid Migraine Triggers 
Articles on natural methods for prevention, symptoms, and triggers. Written Sandra S. Feder a former sufferer.
http://www.avoidamigraine.com/