Migraine.com I have gone to this site numerous times for their articles and information over the years. It is easy to use, well designed for access and great for information.
Health Central Migraine When you are looking for accurate migraine information and also to make sense of new research, this is your place.
Migraine Again This one is new to the scene in respect to my massive migraine history but they have a great site and Facebook page and a vast resource of information.
Help for Headaches Another page for great information on topics that you want to know more about.
The Migraine Trust fact sheets This is just a page I mention because it is a link to resource sheets. So here is some direct information about specific migraine types.