Hypotonia (Muscle Weakness)
- Describes possible causes of the condition, symptoms, and tests doctors may use to find the underlying cause.
- http://www.childrenshospital.org/az/Site1106/mainpageS1106P0.html

National Institute of Neurological Disorders and Stroke (NINDS): Hypotonia Information Page
- Hypotonia information sheet. Explains what it is, some of the treatments, and a comment on the prognosis.
- http://www.ninds.nih.gov/disorders/hypotonia/hypotonia.htm

Contact a Family: Hypotonia
- Site for families with disabled children explains various medical conditions and medical terms. Helps parents network with other parents facing the same challenges.
- http://www.cafamily.org.uk/Direct/h63.html

The Benign Congenital Hypotonia Site
- Information and support for people dealing with hypotonia.
- http://www.lightlink.com/vulcan/benign/

MedlinePlus Medical Encyclopedia: Hypotonia
- Describes the condition and lists some common causes.
- http://www.nlm.nih.gov/medlineplus/ency/article/003298.htm

UK Congenital Hypotonia Website
- Parents of children with hypotonia share stories, medical information, and useful links.
- http://freespace.virgin.net/bch.hypotonia/