The following are sites for specific GI disorders.
Hemochromatosis - Iron Overload Disease Association, Inc.
International Foundation for Functional Gastrointestinal Disorders
This site provides information on irritable bowel syndrome, bloating, gas and fecal incontinence, and many other GI disorders where the contraction function of the bowel is involved.
Crohn's and Colitis Foundation of America
This site provides extensive information for patients with Crohn's disease and ulcerative colitis.
Liver Disease - American Liver Foundation
This site provides a great deal of information on almost every liver condition.
Celiac Disease Support Page
This site is written by an individual with celiac disease and provides education about this disorder along with information about special dietary needs.
Ostomy - United Ostomy Association, Inc.
This site provides information to assist people who have had or will have intestinal or urinary ostomies - i.e. colostomy, ileostomy or ureterostomy.