This site has a huge number of web site links in a variety of areas that deal with rehab.
Hearing aids are a large portion of it.
Hearing Aids Before Electricity Nice article about hearing aid history. It would be good for anyone to visit to help them understand how hearing aids have evolved. Health A good site for patients as as audiologists and other hearing health care providers. Has info on everything from circuits to batteries. Evaluation, Treatment Good web site that has several pictures to help people see how the different types of hearing aids should fit in the ear.