World Hum Map and Database Project
Most people find this website because they are looking for the source of an unusual low frequency sound that scientists now call the Worldwide Hum. The classic description is that the Hum sounds like a car or truck engine idling outside your home or down the block. Some people describe it as a low rumbling or droning sound. It is louder at night than during the day, and louder indoors than outdoors. The sound can usually be masked by background noise, such as a fan.
This website documents and maps the self-reported data from people around the world who can hear the Hum, and also provides a serious and disciplined forum for scientific investigations and commentary. This is a volunteer, non-profit effort. Fund raising barely covers the costs of web hosting and basic equipment.
This is not a place for pseudoscience or conspiracy. There are many other websites and forums for those interested in such things.
Dr. Glen MacPherson can be reached at firstname.lastname@example.org. He regrets that because of the very large number of emails received, not everybody will necessairly receive a timely response.