I know we've all heard bad things about MySpace, but they have several WONDERFUL message boards (Groups, they call them) about Autism and related disorders. I believe the one with the most members is called "I love someone with Autism", something like that. The people there are life-savers. There are so many members that you get answers almost immediately. There is very little negative, and if it does get posted, it is deleted right away. No spamming allowed, it is also deleted. I can't say enough about these people. I have made so many friends there, who I will probably be in contact with for the rest of my life. My son was just diagnosed with Pervasive Development Disorder/Aspergers.
After you sign up on MySpace, just click on "Groups" and you can search by keyword. I used keyword "Autism". Let me know if you need help.