» GeneClinics: An Overview    In depth details about hereditary spastic paraplegia. Includes a summary, definition, categories, diagnosis, genetic counseling and resources.    http://www.geneclinics.org/profiles/hsp/

» HSP Research Foundation    Aims to find a cure for hereditary spastic paraplegia, a degenerative, hereditary disease affecting mainly the lower limbs, causing spasticity and severely impairing mobility. Find details about the organization, how to get involved and resources.    http://www.hspersunite.org.au

» HSP/FSP Support Group    For people suffering from Familial Spastic Paraplegia. Includes a newsletter, discussion forum, links, and contact details.    http://www.hspgroup.org/

» Hereditary Spastic Paraplegia    HSP information sheet compiled by the National Institute of Neurological Disorders and Stroke.    http://www.ninds.nih.gov/health_and_medical/disorders/hereditarysp.htm

» MCW Healthlink: HSP    An article about hereditary spastic paraplegia, also called familial spastic paralysis.    http://healthlink.mcw.edu/article/921730935.html

» Spastic Paraplegia Foundation    Supports on the upper motor neuron disorders hereditary spastic paraplegia and primary lateral sclerosis. Information about these conditions, disability resources, newsletters, news, announcements, research and support.    http://sp-foundation.org/