Babes Without Babes
   A social group for women 35 and older in Edmonton, Alberta who do not have children and who want to connect with other women living the same lifestyle.
   http://www.babeswithoutbabes.com/

Big Kids No Kids
   Created by an Irish couple, this organisation proposes a various activites for childfree adults. Addressed to an international audience (English and French-language), the site includes an online forum and blog.
   http://bigkidsnokids.com

Childless by Choice
   An information clearinghouse for people who have decided not to have children, and for those who are deciding whether or not to become parents.
   http://www.northvalley.net/cbc/

Northern Colorado Child Free Wiki
   Social group for singles and couples. Includes events calendar and links.
   http://www.renegadebrewer.com/ChildFreeWiki

Selfish Heathens
   An online community for liberal childfree atheists and agnostics.
   http://www.selfishheathens.com/