The great American prophet Edgar Cayce is particularly known for his readings on the fabled civilization of Atlantis. According to an article(1) from Fortean Times by Jack Romano, Cayce said electricity was discovered over 50,000 years ago by the Atlanteans, and they also harnessed energy from a "Great Crystal" which they viewed as safer than atomic power.
Cayce believed that Atlanteans were telepathic, and that he had led a past life there as "Ra-Ta," a priest-healer. He also predicted that the sunken continent would eventually be rediscovered in our current time frame. Towards that end, A.R.E., the association devoted to the work of Edgar Cayce, has conducted searches(2) for Atlantean ruins, most recently with an expedition to Andros Island in June 2004.