American Speech Language Hearing Association (ASHA) www.asha.org

American Academy of Audiology (AAA) www.audiology.org

American Association of Retired Persons (AARP) www.aarp.org 

National Institute on Aging (NIA) www.nia.nih.gov/

National Institute on Deafness and Other Communication Disorders (NIDCD) www.nidcd.nih.gov/