Freedom From Religion Foundation
The Freedom From Religion Foundation, with more than 30,000 members, is the largest association of freethinkers (atheists and agnostics) in the United States. FFRF has been working since 1978 to promote freethought and to keep state and church separate.
The Foundation promotes freedom from religion with a weekly national radio show, a TV show, a newspaper, national annual convention, freethought billboard campaigns and other educational endeavors, including scholarships for freethinking students. The Foundation acts on countless violations of the separation of state and church, and has taken and won many significant complaints and important lawsuits to end state/church entanglements.