Futurism

Extropy Institute

KurzweilAI.net

Longevity

Calorie Restriction FAQ

Immortality Institute

Cryonics

Alcor Life Extension Foundation

Social, Political, & Economic Justice

Institute for Justice

Free Minds & Markets

Reason Foundation

Objectivism

The Objectivist Center

Nano and Other Extreme Technology

Foresight Institute

Politics

Libertarian Party

Rational Thought & Action

Skeptics Society

Center for Inquiry-West

Religion

Atheists United