If you operate a national group dedicated to advancing free thought or know of one that is not listed and you would like it added, please send an email request to Greg with all pertinent information. A suggested group description would be helpful, but please limit it to three or four lines.
Americans United for Separtion of Church and State is a national group dedicated to preserving the separation of church and state. It is open to all persons believing in keeping church and state separate where they are religious or non-religious. It is included here since its goals are consistent with the goals of freethinkers. There is a local, but inactive, chapter of the group in Kansas City that can be accessed at http://www.meetup.com/aukansascity/.
Atheist Alliance of America is the American component of the Atheist Alliance International. It membership includes atheist groups as well as individual atheists. The group is dedicated to the advancement of atheism. Links:
The Freedom from Religion Foundation promotes separation of church and state and educates the public on matters of nontheism. Its activities include publication of a free thought newspaper, sponsors essay contests and engages in litigation related to church and state matter.