I'm very much an outsider looking in when it comes to the goings-on at the US Interagency Autism Coordinating Committee (IACC). I'm a Limey working here in Blighty (translation: Brit working in the UK) not in the States and as far as I can see we don't have such an agency here in the UK. Yes, we do have the NICE review which is coming to a close shortly but nothing like the IACC which seems to orchestrate many autism-related activities in the States, including research.
Annually, the IACC produce a summary of autism research which kinda brings together the great and the good of progress in understanding what might constitute autism (the autisms). They've just released the 2012 review of autism research (see here) which contains some interesting studies including those covered on this blog.
A few choice studies and posts are presented for your attention:
Six developmental trajectories.... by Fountain and colleagues.
The branched chain amino acid phenotype.... by Novarino and colleagues.
De novo mutations and paternal age.... by Kong and colleagues.
Kum-ba-arbaclofen... by Berry-Kravis and colleagues.
Wandering.... by Anderson and colleagues.
Mortality.... by Bilder and colleagues.
1 in 88.... by the CDC.