Mayo Clinic: Inflammatory Bowel Disease -
 Information on the disease and its two most common forms, ulcerative colitis and crohn's disease. Included are symptoms, causes and treatments.
http://www.mayoclinic.com/

Medicine Net -
 Focuses on Crohn's Disease and Ulcerative Colitis.
http://www.focusoncrohnsdisease.com/

NewTreatments -
 Alternative treatments are published, along with medical studies, medical data, progress reports, diaries and discussion forums. For Crohn's disease, ulcerative colitis and hypoglycaemia.
http://www.newtreatments.org

The Northwestern Inflammatory Bowel Disease Center -
 A dedicated team of gastroenterologists, radiologists, surgeons, pathologists, psychologists, and social workers specializing in the diagnosis, treatment, and emotional support of IBD patients.
http://www.ibdcenter.org

Patient Community -
A comprehensive information resource for patients with Crohn's Disease and Ulcerative Colitis
http://ibd.patientcommunity.com

SCD Web Library -
 Diet that eliminates specific carbohydrates which are trouble makers in people suffering from Crohn's Disease and Ulcerative Colitis.
http://www.scdiet.org/

Scripps Clinic Inflammatory Bowel Disease Center -
 Articles, links, research and support for patients with IBD.
http://www.scrippsclinic.com/

Specific Carbohydrate Diet -
 Natural diet for people suffering from Crohn's disease, ulcerative colitis, IBS and celiac disease. Complete list of websites dedicated to this diet.
http://www.scdiet.info/