American Foundation for the Blind (AFB)
http://www.afb.org/
Provides information on resources, the latest news on blindness, literature, and services for the blind.

National Association for the Deaf (NAD)
http://www.nad.org/
Provides news, educational resources, and advocacy for the deaf.

National Institute on Aging (NIA), NIH
http://www.nia.nih.gov/
Find the latest research on cognitive disorders in older adults here.

National Institute on Deafness and Other Communication Disorders (NIDOCD), NIH
http://www.nidcd.nih.gov/
Provides research grants and results of research deafness and other communication disorders.

Nursing Intervention Classification (NIC), University of Iowa
http://www.nursing.uiowa.edu/
Find nursing diagnoses related to sensory, perceptual, and cognitive impairments at this site.