MigraineCanada.org: This is a physician and patient resource website which is endorsed by the Canadian Headache Society. This site provides patient and physician educational materials.
The International Headache Society (IHS) : The IHS site offers the complete International Classification of Headache Disorders as well as information about headache medicine and conferences in the field.
British Association for the Study of Headache (BASH) : The BASH is the British affiliate organization of IHS.
European Headache Federation (EHF) : The EHF publishes The Journal of Headache and Pain, and organizes the biennial European Headache Congress.
National Headache Foundation (NHF): This American based web site provides patients and health care providers access to educational resources as well as programs and services.
The Migraine Trust: This is a British organization which provides information and resources, including opportunities for research funding.
Migraine 4 Kids: Sponsored by the Migraine Awareness Association in the UK, this site is for children with migraine.
Organization for the Understanding of Cluster Headache (OUCH): The OUCH web site is both a physician and patient directed website devoted to cluster headache.