International Ostomy Association

United Ostomy Associations of America (UOAA) "an association of affiliated, non-profit support groups committed to improving the quality of life of people who have, or will have, an intestinal or urinary diversion", and a member of the International Ostomy Association
- UOAA's list of links

World Ostomy Resource
This site no longer exists, but you can visit the archived version here.
NOTE: The links will not work at that archived version, since they point to the non-existent site. However, if you preface each with
http://web.archive.org/web/20051125165055/
they will work.
e.g.
original site URL: http://homepage.powerup.com.au/~takkenb/ReadMe.htm
archived site URL: http://web.archive.org/web/20050310234542/homepage.powerup.com.au/~takkenb/ReadMe.htm