I found some helpful resources for elementary school teachers to assist with "assistive technology". Top Teacher Tools is a website that can be used at a resource for finding other resources for assistive technology. This website basically gives a list of websites and a summary of what each website has to offer. I found it very help to read the summaries of the resources to find a website that best fits the information a teacher would be looking for.
Assitive Technology Training Online was one of the websites listed on "Top Teacher Tools". This website was very user friendly and allowed a teacher to actually go through a process of finding the best AT for their particular student. You can go through a step by step process of first picking a similar student story and answering questions to find a AT prefect for the students situation. There are also tutorials on how to use the particular equipment that seem like they would be very helpful for teacher. There is also a section that provides links to vendors, laws and state and national projects regarding assistive technology.
Trace Center is based out of the University of Wisconsin- Madison and is working to help individuals with disabilities have a better access to the internet. This website has a lot of useful links and information about products and tools for assistive technology.