Rational Responders (Official)

170 members Latest Activity: Apr 23 Atheists who consider themselves sympathetic to the mission, attitude, and methodologies of the Rational Response Squad.

Atheists of Great Britain and Ireland

209 members Latest Activity: Feb 18 For those wishing to discuss the desecularisation of services and politicisation of religion in the UK.

Secular Sexuality

678 members Latest Activity: May 17 (NSFW) A no-taboo approach to sexual education and health.

American Humanist Association (AHA)

734 members Latest Activity: May 9

The American Humanist Association advocates progressive values and equality for humanists, atheists and freethinkers in the United States. We work…

Freedom From Religion Foundation (FFRF)

602 members Latest Activity: May 16 The Freedom From Religion Foundation, based in Madison, Wis., is a national association of freethinkers (atheists, agnostics) that has been…