Here are some reliable sources that can provide more information on Tinnitus:
American Tinnitus Association
The Marsona Corporation
P.O. Box 3098
Wilmington, Nicole 28406-0098
markets a sound generator called the TSC-300, which produces a rain sound capable of making high-pitched tinnitus for some people. The same unit produces a waterfall sound, which may be sufficiently low-pitched to mask pulsatile tinnitus.
Additional products are clocks, or clock/radio combinations that can be programmed to produce sounds like ocean waves, babbling brooks, rainstorms, and similar, soothing-type sounds.
American Academy of Audiology
American Academy of Otolaryngology, Head & Neck Surgery, Inc.
American Speech-Language-Hearing Association (ASHA)
American Society on Aging (ASA)
Association of Research in Otolaryngology (ARO)
Better Hearing Institute
Hearing Alliance of America
National Institute on Deafness and Other Communication Disorders
National Institute of Health
SHHH (Self Help for Hard of Hearing people)