• WS Organisations and Support Groups:
  • Williams Syndrome Association of Ireland (WSAI)
  • The Williams Syndrome Foundation UK, the original WS organisation.
  • The American Williams Syndrome Association, which has excellent medical, psychological and educational guidelines.
  • The American Williams Syndrome Foundation, involved in research and long-term projects.
  • The Canadian Association for Williams Syndrome
  • WS Family Support Group of Victoria, based in Melbourne, Australia.
  • Autour des Williams, French WS Site.
  • Bundesverband Williams-Beuren-Syndrom, German WS Site.
  • Associazione Italiana Sindrome di Williams, Italian WS Site.
  • Association "Syndrome de Williams" Belgique francophone, Belgian WS Site (French).
  • vzw Williams-Beuren Syndroom, Belgian WS Site (Flemish).
  • Asociación Argentina de Síndrome de Williams, Argentine WS Site
• The Williams Syndrome Comprehensive Web Page, which has lots of information, articles and links to other sites.
• Berkshire Hills Music Academy, a Massachusetts based academy for post-secondary adults with Williams Syndrome or other cognitive challenges who have a strong interest and/or abilities in music which they wish to enhance.
• The Lili Claire Foundation, a Los Angeles based organisation whose mission is to provide a happy, productive, fully-integrated life for individuals living with Williams syndrome and other neurogenetic birth defects such as Down syndrome and autism, and to provide hope and resources for the families who love them.
• Family Village entry about Williams Syndrome.
• Special Child Magazine Disorder Zone entry about Williams Syndrome (includes personal experiences).
• Williams Syndrome Monthly Medline Alert, which provides information on medical literature about Williams Syndrome.

• See Contacting WS Families online

The following medical/genetic sites have entries for Williams Syndrome:

• GeneClinics (Medical Genetics Knowledge Base), an excellent readable site.
• OMIM (Online Mendelian Inheritance in Man)
• The Salk Institute Laboratory for Cognitive Neuroscience
• MedLine (Williams Syndrome search).

For those interested in learning about Genetics:

• Chromosome Deletion Outreach has a very good Introduction to Chromosome Abnormalities
• Taryn Murphy has a simple explanation for children at her site, Taryn's World..and Welcome to it!

Information about WS genetic research:

• GeneClinics (Medical Genetics Knowledge Base), has excellent genetic information.
• The Chromosome 7 Project
  (includes some fairly technical WS information and has a Chromosome 7 Database which includes all the WS-related markers).
• Cedars Sinai Molecular Genetics Laboratories
• University of Nevada Genetics Program