Hearing Aids
  Web Link
  Link   Mayo Clinic - Choosing the Right Hearing Aid
Good descriptions of various types of hearing aids and questions to help you choose the best type for you need.
  Link   National Institute on Deafness and Other Communication Disorders
Excellent site with descriptions of various types of hearing aids and hearing disorders
  Link   HealthyHearing.com
Site with information on hearing, hearing aids, and cochlear implants.