Other
Npc: Noise and Its Effects
Research paper delivered at the Administrative Conference of the United States. Covers physical properties, specific types of noise pollution, and their effects. Very comprehensive, easy to use index format.
National Institutes of Health
Nidcd: Sudden Deafness
Sudden Deafness, or Sudden Sensorineural Hearing Loss (SSHL), is described at this site. In addition to a description, information is provided on causes, treatment, research, and available resources.
World Health Organization
World Health Organization: Deafness and Hearing Impairment
This informative site delves into the following deafness and hearing impairment topics: definition definition, facts, causes, social and economic burden, and WHO's strategy for prevention and control.