I've heard of the recent launching of Knol, Google's
wikipedia-like effort towards a global knowledge base,
in articles called 'knols'. Main difference from wikipedia
is explicit authorship and comments, reducing some of
Wikipedia's untransparent 'flame wars' on sensitive topics.
Use knol.google.com because knol.com is a Dutch co.

It's very 'empty' now. In the broad area of Autism
there's only one knol now, by Bryna Siegel. Not bad,
still parent-and-professional oriented and a bit clinical,
but much less so than official sites a few years ago.
A few near misspellings of medicines (from a Dr?).
Criticizes mercury/thimerosal vaccine causing autism hypothesis.
Also points to several of her books, by Amazon code ;-)

Thank you for thinking about this,
Mircea Pauca, Bucuresti, Romania