I don't know how true all this information is, but while I was pregnant, I did an awful lot of research about it after reading an article at my in-law's. It is truly scary, but not unthinkable, that our own government would be allowing such a thing to happen.
I purposely waited until my son was a LOT older before he received any vaccinations specifically because of this.
I asked the doctors who gave the vaccinations and never got a straight answer. It was usually, "I don't know actually - we get them from blah blah blah." This is not one doctor - this is 15-20 between Minnesota and Nevada. NONE of them knew, and a few had never even heard about this.
I have met so many people with kids who have autism, and volunteered in a center for autistic children several years ago. It just seems unreal that THAT many kids have autism all coming from the same generation.
Lyion, you may want to read this. More information here as well:
Thimerosal FAQs
Generation Rescue
That last link is a parent-founded organization. They are really worth looking into.