I just posted this in response to another mom's question earlier today:
We have gotten the shot every year, and this year I also got him the H1N1 while we were in Az over the weekend. I sort of agonized, but this is what I decided on based on my research. There's an excellent article on vaccinations in the current issue of the Sceptical Enquirer. Bottom line -- the vax/autism data was faked/poorly done by a Dr with alterior motives and the data has never been reproduced therefore invalid, thimerisol has never been linked and celebrities know jack about science. Autism has most likely a genetic factor involved. Also, the amount of mercury in a flu shot is probably less than what you would get eating a tuna sandwich or breathing the air in some places. Mercury is all around us and we process it, usually (key word -- usally within limits, but not always) just fine.
I've also heard that it's better for your kid's immune system to get the flu, but here's the thing I finally realized -- if they're getting the mist, they're getting the live virus and therefore their immune system is getting a work out. That's basically what vaccinations are all about.
I know some people say the worst in getting the flu is the time and the fever. My aunt had a fever when she was young and, long story short, suffered a life long paralysis that severely impacted her life. I decided to just go ahead and do it since he's in the high risk group. Also, you'll hear about links to paralysis but that has to do with the vaccine that came out in the 70's. I think it's safe to say that we've progressed since then. Vaccinations are the most highly regulated now. Also, H1N1 is just a version of the flu and not a completely new animal. Every year a new flu shot comes out to address new viruses that are making the rounds. The H1N1 is no different in that way.
I read some interesting articles via this article as well this morning. It has links to some interesting recent articles: http://blogs.babble.com/strollerderby/2009/10/24/a-wired-...
The choice is entirely yours. It's not an easy one and nobody should make you feel bad or guilty about chosing one way or the other.