Futurist, co-founder and chairman of the Extropy Institute.

Interests: how biotechnology will allow us to get rid of suffering in all sentient life (allegedly); animal rights; consciousness; psychopharmacology; and "Why does anything exist?" An attractive, thought-provoking, and many-tentacled site.

Economist and polymath; inventor of "Ideas Futures" markets; allegedly open-minded and politically undogmatic. His homepage is immodest(?) and says much about him, not necessarily bad things.

Research Fellow of the Singularity Institute, author of "Friendly AI" and "Staring into the Singularity". His Web complex, "The Low Beyond", contains professional and personal writings.

Transhumanist and technology advocate. Incorporates the former Transhumanist Unitarian Universalist Network.

Mathematician and originator of the "Omega Point" theory that the universe is finite, and therefore ultimately controllable in its entirety by sentients.

Personal site of João Pedro de Magalhães, researcher of human aging, with several essays about transhumanism, human nature, and the ethics of new technologies.

Marc Geddes, writer of science fiction, fantasy, and libertarian-transhumanist philosophy.

Founder and director of the Transhumanist Arts & Culture World Center, president of the Extropy Institute.

Essays and press appearances from the computer programmer, transhumanist, and extropian.

Essays from the Dutch musician about transhumanism, space exploration, and political philosophy.

Extropian and Buddhist; coauthor of the Extropian FAQ. His vast array of transhumanist and anarchocapitalist interests makes him one of the archetypal Extropians.