http://archive.wired.com/wired/archive/9.12/aqtest.html no idea on it's accuracy but interesting nonetheless (For the record I scored 37 and I'm not (afaik) autistic).
The "AFAIK" is key here. These days there is an "increase" of ASD cases mostly because the diagnostic was extended to cover Highly Functional cases. The thing is that individuals with High Functioning Autism can live normal lives and go undetected (Just as the author) which begs the question... Should it be detected at all?
I wouldn't give this or any other online test anything more than extreme skepticism.
Completely agreed.