Please visit our Facebook page where you will find some great discussion groups about Montessori and autism, and you can also make base with MEfA's fb fans from around the world:
http://www.facebook.com/business/dashboard/#/pages/Montessori-Education-for-Autism/109006578044
MEfA loves to hear what works well for children with autism in Montessori environments (and elsewhere!) and what does not.
This will help us work towards our MEfA benchmark for 'Autism-Friendly Montessori Schools'.