General: 

American Academy of Audiology: www.audiology.org

American Speech-Language-Hearing Association: www.asha.org

International Hearing Society: www.ihsinfo.org

American Academy of Pediatrics: www.aap.org

National Institute on Deafness & Other Communication Disorders: www.nidcd.nih.gov

Better Hearing Institute: www.betterhearing.org

Occupational Health:

Occupational Safety & Health Administration: www.osha.gov

The National Institute for Occupational Safety and Health: www.cdc.gov/niosh

Newborn Hearing Screening:

National Center for Hearing Assessment and Management: www.infanthearing.org

Joint Commission on Infant Hearing: www.jcih.org

The Baby's Hearing: www.babyhearing.org

Otoacoustic Emissions

Otoacoustic Emissions Portal Zone: www.oae.it