If you're a fan of electronic voice phenomena (recording noises in a haunted place and scanning the recordings for sounds made by ghosts or other spirits), you may be interested in joining the American Association of Electronic Voice Phenomenon.

Sarah Estep founded the AA-EVP in 1982 after she began to pick up voices on her husband's reel-to-reel tape recorder. Before her death in January of this year, she recorded over 20,000 voices of ghosts and aliens. The AA-EVP was founded on the survival hypothesis, which states that humans exist as nonphysical entities before and after their lives on Earth. Electronic voice phenomenon happens when these nonphysical entities attempt to communicate with the living.

The members of the AA-EVP study electronic voice phenomena as well as what they call Instrumental TransCommunication, or the ways in which electronic voice phenomena can be recorded through technology. The AA-EVP also publishes a quarterly journal and a directory of its 500 members. They do research about new technology available for listening to electronic voice phenomenon, and use electronic voice phenomenon to provide help to the grieving.