The Secular Web:Online community of nonbelievers dedicated to the pursuit of knowledge, understanding and tolerance.
2think.org: Book reviews, discussion list, quotes and forum about evolution, science, and religion.
4 Atheists: Offers news, links and a list of organizations.
A Refutation of Religion: An essay in defence of an atheist-agnostic viewpoint, presented in question and answer format.
About.com: Agnosticism/Atheism: Select, annotated links on topics of interest to atheists and nonbelievers.
Atheism and Evolution: Book reviews, articles and responses about atheism vs. evolution.
Atheism Resources: Recommended reading, cartoons, articles and features.
Atheism... The Final Frontier: Articles, poetry, polls, links, all from the atheist perspective.
Atheist Contacts: Contact list for atheists around the world.
Atheists Anonymous: Aims to answer questions, and provide support for all non-believers.
Beliefnet.com - Secular Philosophies: Provides information, essays, articles, and an online community about secular philosophies.
Capella's Guide to Atheism: Biblical contradictions, list of poor arguments, and reasons why people believe in God.
Criticising Christianity: Points out the absurdities, inaccuracies, and general deficiencies of the Christian religion.
Dave's Things To Think About: Dave Stull provides a collection of essays about contemporary theological issues from a sceptical perspective.
Detox: Religious recovery magazine. Atheist humor, information, and links.
Ebon Musings - The Atheism Pages: A collection of essays on atheism and theism.
FireRain: Dedicated to the eradication of theism. Essays about atheism and the bible, as well as humor and socialism.
Freethinkers: News, essays, reviews, and links about religion, science and philosophy.
God is Dead: Articles, debates, and essays on evolution, creation theories, and atheism as a whole.
Graveyard of the Gods: Freethinkers site with news, articles, fiction and a discussion board.
Heathen Handbook: Online community of atheists. Offers humour, suggested reading, and personal stories.
Inquisitive Atheists: Arguments about evolution vs. creationism, debunking God, Jesus, and the Bible, as well as general atheist information.
No-God.com: Games, MP3s, news, and forum.
Positive Atheism Magazine: News, history, humor, opinion, and analysis.
Really Good News: An exploration of the basis to all forms of spirituality from an atheist perspective.
Secular Singles: Personal ads for atheists, agnostics and freethinkers.
SecularLife: Provides support about general secular and religious issues, as well as individual, situational help and advice.
Skepticism and Christianity: Essays, online books, amd links.
Suite101.com: Atheism: Articles, polls, links, discussions, and contests.
The Atheism Web: A resource for atheists, agnostics and freethinkers on the Internet. Home of the alt.atheism and soc.atheism newsgroups.
The Church of Free Will: Essays from an atheist perspective.
The Closet Atheist: Opinion pieces, statistics, reader letters and essays about atheism.
The Freethought Zone: A collection of essays which addresses misconceptions concerning the nature of science and religion and the beliefs of non-theists.
The Rants of Logic: Opinions on atheism, morality, and the separation of Church and State.
The Rejection of Pascal's Wager: A skeptic's guide to Christianity.
The Skeptic's Dictionary: atheism: Definition of atheism and related links.
The Truth Shall Set You Free: Online book expressing a skeptical view of Christianity and other organized religions.
The Unspoken Bible: Dedicated to exposing the sins of omission and commission in the Bible.
True Truths: Series of essays challenging religion. Also includes links and excerpts from a book by Creighton Ainsworth.
Wasteland of Wonders: Atheism: Articles about atheism, humanism, and skepticism.