I suppose I should post something on Autism Awareness Month before the month is over. I was going to link to Sam's series on autism and the brain way back at the beginning of the month, but I thought the series wasn't finished, and then I forgot. She's had three posts on autism and the brain: part 1, part 2, part 3. She also posted on autism research and autism on Wikipedia. There's a wealth of information amidst all that.