Autism is a neurological disorder that results in a lifelong developmental disability. It is usually diagnosed in early childhood and it appears with wide variation in symptoms and intensity. There are 3 times as many autistic boys as girls.
Individuals with autism typically have serious difficulties with language and socialization. Some also have strange sensory issues, such as not being able to tolerate scratchy clothes or some food textures. For complete information on symptoms and diagnoses, see the sites I have listed below.
Here's a list of resources for parents of disabled children of all kinds. I've tried to cover all the most common disabilities kids and parents face. Emphasis is on support groups and parent resources in the Portland, Oregon area.