CNN has been running a series this week on Autism. If you haven't been following it, go to their website and give it a look.
They have a good piece on an Autism group, Naughty Auties, in Second Life. Second Life is an interesting piece of free software. Users create an avatar to represent themselves online. Then they can travel thru Second Life and shop, chat with others, fly around, or even go into orbit. What I find interesting is that when you're on Second Life, there are no 'handicaps'. If you are in a wheelchair in real life, you can fly, just like everyone else, in Second Life. It's another good example of 'bridge tech'.