Animated-Teeth.com: Canker Sores / Aphthous Ulcers -
A discussion about these disorders and their causes.
http://www.animated-teeth.com/canker_sores/t1_canker_sores.htm

Aphthous Stomatitis Web Site -
Personal site devoted to Recurrent canker sores. Guide to other sites on canker sores with updates based on the most current information about causes and medications.
http://www.users.qwest.net/~dallas7/aphthous.html

The Canker Sore Relief Center -
 Resource for preventing and treating canker sores. Free newsletter, extensive background on canker sores, and information on available medications.
http://www.saveyoursmile.com/cankersores/dzcankersores.html

Canker Sores: What Are They and What Can You Do About Them? -
 Information from the AAFP.
http://familydoctor.org/613.xml

Mouth Ulcers -
 Community for sufferers. Includes a causes survey and a treatment survey as well as an informative public message board.
http://www.mouthulcers.org

Natural Healthlink -
 Detailed information on mouth ulcers, the symptoms, treatment and diet changes that may be helpful.
http://www.naturalhealthlink.com/ReferenceLibrary/healthnotes.asp?ArticleID=22&type=1

Recurrent Aphthous Stomatitis and Perceived Stress -
A research project investigating the relationship between RAS and perceived stress.
http://aphthous-stressstudy.tripod.com