Williams Syndrome (WMS, WS)
- National Library of Medicine provides a list of synonyms, a summary of the syndrome, and major physical features.
- http://www.nlm.nih.gov/archive/20061212/mesh/jablonski/cgi/jablonski/syndrome_cgi72d1.html?term=Williams+syndrome+(WMS,+WS)&field=name

A Music Camp for Those Afflicted but Gifted, Too
- New York Times feature article about the Belvoir Terrace summer music camp program for people with Williams syndrome.
- http://query.nytimes.com/gst/fullpage.html?sec=health&res=9406EEDA103CF935A1575BC0A9649C8B63

Wikipedia: Williams Syndrome
- A concise summary of its cause and symptoms.
- http://en.wikipedia.org/wiki/Williams_syndrome

Williams Syndrome
- Information sheet compiled by NINDS, the National Institute of Neurological Disorders and Stroke.
- http://www.ninds.nih.gov/disorders/williams/williams.htm

Moylan Family Website
- An Irish family's experience of Williams Syndrome.
- http://homepage.eircom.net/~moylanfamily

NORD : Williams Syndrome
- Offers alternative names, a general discussion and resources.
- http://www.rarediseases.org/search/rdbdetail_abstract.html?disname=Williams%20Syndrome