I do not have any personal experience with Autism, but a friend teaches in a school for autistic children near London.
Here's the website of the National Autistic Society which also has information re Asperger's Syndrome.
http://www.nas.org.uk/
I seem to recall that the University of Sunderland is undertaking pioneering research. Sorry, I don't have a website, but if you do a google search with University of Sunderland+Autism - I'm sure you'll find information.