If the user has computer skills, typing in a word processor or editor is extremely helpful in communicating. If there is a college or university close to you, call the library and ask what they are doing or using in the way of adaptive equipment. There may be a user of adaptive technology in your community. Nothing has opened windows to the world quite like the Internet. This is particularly true for people with disabilities.
Research is now a only an Internet connection away.
Literally thousands of libraries around the world are accessible online. The Internet is often referred to as the information superhighway. There are many resources to help librarians access this information. It is free and all that is required is an e-mail address. EASI has a software library with freeware, shareware and demo programs available via the Internet.