Casa da Esperança - research, therapy, education.(Fortaleza-CE)  

Página do Autismo (Autism Page) 

USA  

The Autism Society of America

Center for the Study of Autism  

ANI - Autism Network International an autistic-run self-help and advocacy organization for autistic people. 

Oooops! Wrong Planet Syndrome   

The World Autism

Autism Picture page  

The New England Center for Children  

Spain 

APNA - Asociación Española de Padres y Niños Autistas  

Asociación Nuevo Horizonte

Asperger's Disorder Homepage

CHA - Canadian Hyperlexia Association

Rett Syndrome - Research for Rett