Oh yes, there are a lot of us dealing with this! In 1992, there were 5 school aged children with autism in Illinois. Today, there are 13,000.
I'd like to recommend a good book to read. It's called "Can I Tell You About Asperger Syndrome?: A Guide for Friends and Family" by Jude Welton. You can get it at Amazon, Barnes & Noble, and other bookstores, and maybe your local library has it as well. The book is actually written for kids, but it gives a lot of information about what a child with autism deals with in an ordinary day. Very elightening. And since it's written for kids, it's easy to read, quick to read, and without all the medical jargon. I bought several of these books, and pass them out to teachers, daycare providers, babysitters and family. It helps them to understand where my son is coming from.
I'd also recommend that you contact your local ASI (Autism Society of Illinois) chapter. They can hook you up with local support groups, educational seminars, etc. Here's a link that can get you started: http://www.asacic.org/links.htm (I'm not sure where you are, but I thought it was Central Illinois. If that's not correct, that link will help you find other closer chapters.)
I'd also invite you to check out my website. I'm a mom of a 10 year old son with high functioning autism. When my son was diagnosed just two years ago, I searched all over the internet for information on autism, after finding nothing online for autism support groups in my hometown. I gathered so much information, I didn't know what to do with it all, so I started a website to help other moms like you and me. You can find it here: www.RockfordAutism.com. It has autism information, books, local and state resources, inspirational materials, blogs, etc. I hope it can help you out. Also, feel free to email me anytime.
I'd also like to recommend that you take a few deep breaths and relax, after getting a diagnosis like that. It may seem like your world has been turned upside down, but that's really not the case. Now you have some answers, and some idea of what direction to take. That's more than you had before, and that's good. And what you've just learned about your sweet little boy doesn't change him in the least. He's still that beautiful little angel that brings your life joy, and the diagnosis doesn't change that at all. Nothing has changed, except that you now may have more help. There are other parents that have walked this path, and you can learn from their journeys.
You'll want to get your son into Early Intervention. They will help enormously. But take your time and read up on autism, or talk to other parents who deal with autism. There are a lot of theories out there on the best way to deal with or treat autism, and you might want to have a little background information before you decide which paths are best suited to you and your son.
Hugs to you.
J.