C-U Free

"Reason and free inquiry are the only effectual agents against error."
-Thomas Jefferson (Notes on the State of Virginia, 1787)

Freethinker

Athiests, Agnostics & Freethinkers - UIUC
"AA&F is student organization at the University of Illinois that is dedicated to promoting the natural, rational, and scientific explanation of the universe and our place in it."

Center For Inquiry
"The purpose of the Center for Inquiry is to promote and defend reason, science, and freedom of inquiry in all areas of human endeavor."

NOW with Bill Moyers: America's Freethinking Tradition
"Merriam Webster's dictionary defines a freethinker as 'one that forms opinions on the basis of reason independently of authority; especially: one who doubts or denies religious dogma.' Susan Jacoby and other scholars point out that secularism and freethinking have always had a crucial role in American politics and culture."

The Critical Thinking Community
"The Foundation and Center for Critical Thinking aim to improve instruction in primary and secondary schools, colleges and universities."

The Center for Naturalism
"The Center for Naturalism promotes science-based naturalism as a comprehensive worldview - a rational and fulfilling alternative to faith-based religions and other varieties of supernaturalism."

The Richard Dawkins Foundation for Reason and Science
"Oxford professor Richard Dawkins presents a series of lectures on life, the universe, and our place in it."

Science/Evolution

National Center for Science Education
"The National Center for Science Education (NCSE) is a not-for-profit, membership organization providing information and resources for schools, parents and concerned citizens working to keep evolution in public school science education."

Talk.Origins Archive
"A Usenet newsgroup devoted to the discussion and debate of biological and physical origins."

Scientific American
"Scientific American, the oldest continuously published magazine in the U.S., has been bringing its readers unique insights about developments in science and technology for more than 150 years."

Church/State Separation and Politics

Americans United for Separation of Church and State
"Americans United protects separation of church and state by working on a wide range of pressing political and social issues."

Theocracy Watch
The Rise of the Religious Right in the Republican Party

Freedom from Religion Foundation
"The Freedom From Religion Foundation, Inc., is an educational group working for the separation of state and church. Its purposes, as stated in its bylaws, are to promote the constitutional principle of separation of state and church, and to educate the public on matters relating to nontheism."

Secular Coalition for America
"The Secular Coalition for America is a 501(c)4 advocacy organization whose purpose is to amplify the diverse and growing voice of the nontheistic community in the United States. We are located in Washington, D.C. for ready access to government, activist partners and the media. Our staff lobbies U.S. Congress on issues of special concern to our constituency."

The Religious Freedom Page
"America's founders believed religious freedom to be the "first liberty." The content of this site is concerned with issues of religious freedom in the U.S. and around the world."

The Interfaith Alliance
"Founded in 1994 to challenge the radical religious right, TIA remains committed to promoting the positive and healing role of religion in public life by encouraging civic participation, facilitating community activism, and challenging religious political extremism."

Skepticism

James Randi Educational Foundation
"The James Randi Educational Foundation is a not-for-profit organization founded in 1996. Its aim is to promote critical thinking by reaching out to the public and media with reliable information about paranormal and supernatural ideas so widespread in our society today"

The Skeptic's Guide to the Universe
"A weekly Podcast talkshow produced by the New England Skeptical Society (NESS) in association with the James Randi Educational Foundation (JREF) : discussing the latest news and topics from the world of the paranormal, fringe science, and controversial claims from a scientific point of view."

The Skeptics Society
"A scientific and educational organization of scholars, scientists, historians, magicians, professors and teachers, and anyone curious about controversial ideas, extraordinary claims, revolutionary ideas, and the promotion of science. Our mission is to serve as an educational tool for those seeking clarification and viewpoints on those controversial ideas and claims"

The Skeptic's Dictionary
"From abracadabra to zombies."

Religion

Skeptic's Annotated Bible
"Everything you ever wanted to know about the Bible."

The Brick Testament
The Bible illustrated with Legos.

Adherents
"Adherents.com is a growing collection of over 43,870 adherent statistics and religious geography citations: references to published membership/adherent statistics and congregation statistics for over 4,200 religions, churches, denominations, religious bodies, faith groups, tribes, cultures, movements, ultimate concerns, etc. The religions of the world are enumerated here."

Online Parallel Bible
"Our mission is to increase the visibility and accessibility of the Scriptures online. Our site is designed to get you quickly to the verse, version and site you need."

WorldWide Religious News
"WorldWide Religious News is a non-profit service providing the international academic and legal community with up-to-date religious news from around the world. "

BBC Religion and Ethics