Here's a news article featuring Amanda Baggs (Blog) in the virtual world Second Life. Amanda is an advocate for Autism and has profound Autistic characteristics. The video features her work in virtual worlds and her views on mental health discrimination.
Her group in Second Life is called 'Autistic Liberation Front'. The group title may sound a bit radical but their site is very accessible. I'd recommend checking it out if you're interested. Her most popular video on YouTube gained a lot of attention from the press and raised awareness of some of the classic symptoms of Autism as well as the discrepancy between Autistic communication and verbal language.