National Institute of Neurological Disorders and Stroke 
Porencephaly information sheet compiled by NINDS.
http://www.ninds.nih.gov/health_and_medical/disorders/porencephaly.htmMCW Health Link 
An article about porencephaly, which is an extremely rare disorder of the central nervous system involving cysts or cavities in a cerebral hemisphere.
http://healthlink.mcw.edu/article/921449639.html
The CaF Directory 
A brief description of porencephaly along with a contact group for those residing in the UK.
http://www.cafamily.org.uk/Direct/p30.html
National Library of Medicine 
A summary about porencephaly and a list of major features.
http://www.nlm.nih.gov/mesh/jablonski/syndromes/syndrome535.html