Keith Henson Talks about Memetics, Evolutionary Psychology & Scientology - 10 Zen Monkeys (a webzine):
"Keith Henson is sort of an ur-transhumanist. In the 1970s – ‘80s, he was one of the founders and leaders of The L5 Society, an organization dedicated to building homes in high orbit using raw materials from the lunar surface. The L5 group attracted the interests of those seeking practical solutions to predicted resource scarcities, among them K. Eric Drexler. Henson formed a friendship with him, and was among his contacts as Drexler was conceiving nanotechnology"