Pediatric Oncal
- Information presented about Fragile X Syndrome, including the diagnoses and clinical manifestations.
- http://www.pediatriconcall.com/fordoctor/diseasesandcondition/fragile_x.asp

Fragile X Research Foundation of Canada
- Registered charity publishes a newsletter, invites applications for research grant, and explains how to donate or join.
- http://www.fragile-x.ca/

Maryland Fragile X Resource Group
- A community of families in and around the Washington-Baltimore metro area that have children affected by Fragile X Syndrome. Includes news, upcoming events, and resources.
- http://www.mdfragilex.org/

The National Fragile X Foundation
- Features information about the disease, its treatment, and inheritance.
- http://www.fragilex.org/

Fragile X Association of Australia
- Information on this disease, medical aspects, education, references, contacts and what's new in Australia
- http://www.fragilex.org.au/

Living with Fragile X
- One family's account of raising 3 children with Fragile X.
- http://fragilex.ca

Online Support Group
- Support group for Family's who are dealing with Fragile X Syndrome.
- http://groups.yahoo.com/group/fragilex/

Conquer Fragile X, Inc.
- Creating a virtual research center in Israel to find a cure.
- http://www.conquerfragilex.org

Carolina Fragile X Project
- A series of studies examining the impact of fragile X syndrome (FXS) on individuals, families and the agencies that serve them.
- http://www.fpg.unc.edu/~fx/

Fragile X Syndrome - Diagnostic and Carrier Testing
- A Policy Statement from the American College of Medical Genetics.
- http://www.faseb.org/genetics/acmg/pol-16.htm

FRAXA Research Foundation Home Page
- Non-profit organization run by parents. Fighting to find a cure for Fragile X Syndrome and helping Fragile X Family's.
- http://www.fraxa.org/

Fragile X Association of Southern California
- Fragile X Syndrome is the leading inherited cause of developmental disabilities and mental impairment worldwide. It affects 1 in 2,000 males and 1 in 4,000 females. It is estimated that 1 in 259 females are carries of the premutation.
- http://www.fraxsocal.org