Note: the above is (more or less) the "basic" or "general" definition of transhumanism. A specialized, expanded version of the transhumanist philosophy, Transtopianism, can be found here.
A medium traffic list for discussing matters related to cryonics, the experimental procedure whereby patients who no longer can be kept alive with today's medical abilities are preserved at low temperature for treatment in the future.
Homo Excelsior The Transhumanist's Magazine. HedWeb -- The Hedonistic ImperativeThe Hedonistic Imperative outlines how genetic engineering and nanotechnology will abolish suffering in all sentient life.
World Future SocietyThe World Future Society is a nonprofit educational and scientific organization for people interested in how social and technological developments are shaping the future.
Foundations of TranshumanismThis is a project to lay out the foundations of a transhumanist philosophy. A selected number of cutting-edge texts on the key issues are presented in a systematic way. The Up-Wing Home PageUp-Wing is a movement dedicated to promoting means to improve the chances of averting catastrophe and attaining the stars. Up-Wing promotes the development of new technologies, ethics, economics and philosophies concerned with imminent dangers and opportunities for the survival of our civilization. Skyful of Stars A site devoted to speculation about trends, technologies, and social structure in the near and far future. The Futurism PageThis page is devoted to the scientific and philosophical exploration of the potentialities and dangers of the immediate as well as the remote future. Libertarian Futurist Society The New Civilization NetworkThe New Civilization Network (NCN) is a global network of people visualizing a better world and working on building it. A world of increased quality of life, freedom, fun and inspiration for all. A world where the needs of all of humanity are met. The Road to Posthumanity A small sketch of possible methods to expand our capacity, from the present state to a posthuman state. Brain Tennis -- Max More vs Paulina BorsookDiscussion about transhumanism and extropy from HotWired. Vernor Vinge on the Singularity