Religion

• Council for Secular Humanism
• Freedom from Religion Foundation
• Americans United for separation of Church and State
• Secular Web
• Interfaith Alliance

Politics

• American Civil Liberties Union
• Americans for Religious Liberty
• People For the American Way

Science and Pseudoscience

• Quackwatch
• Committee for the Scientific Investigation of Claims of the Paranormal
• The National Council Against Health Fraud
• American Council on Science and Health

Unassimilated Links

• Campus Freethought
• Center for Inquiry
• Secular Student Alliance
• Skeptic Magazine
• The Skeptics Dictionary
• Urban Legends Reference Pages
• FraudsandScams.com