National Ghost Hunters Society  
   About ghosts, the dead and the paranormal, photos, stories, real facts.
   http://www.nationalghosthunters.com

The Vortex  
   Paranormal investigators of southeast Michigan specializing in ghosthunting and paranormal studies. Information on investigations undertaken, message boards, details of group members, and investigation request facility.
   http://www.vortex-online.org

San Diego Paranormal  
   Provides research services in the San Diego area, and collects actual stories. Information on various methods of paranormal investigation, as well as an archive of ghost stories and a daily horoscope.
   http://www.sdparanormal.com

Trails End Paranormal Society of Oregon  
   Society that researches ghosts, vortexes, ectoplasms, Electronic Voice Phenomena, hauntings, poltergeists and paranormal activity. Information on the society and details of how to conduct paranormal investigations.
   http://www.trailsendparanormalsocietyoforegon.com