Are God and Ethics Inseparable or Incompatible?: An article discussing the moral argument for God and the counterargument for atheism.
Atheism: Provides proofs that atheism is invalid. Also has tips on how Christians and atheists should communicate.
Atheism and Agnosticism: Looks at the similarities and differences between atheism and agnosticism.
BBC: Atheism: An introduction on the history, rituals, and different types of atheism.
Dave's Things To Think About: Provides a collection of essays about contemporary theological issues from a sceptical perspective.
Ethical Atheist: Group resisting the influence of religion while promoting a scientific and nonreligious worldview.
Famous Dead Nontheists: A listing of famous atheists, each with a brief biography.
Morality Without God: An essay which discusses whether morality is evidence of God.
Religious Movements: Atheism: Includes the history, beliefs and sacred texts of atheism.
The Closet Atheist: Opinion pieces, statistics, reader letters and essays about atheism.
The Secular Web: Contains many articles about atheism. Plus a blog and discussion forum.
Wasteland of Wonders: Atheism: Articles about atheism, humanism, and skepticism.
Wikipedia: Atheism: Online encyclopedia details the history of atheism, the different types, and how it relates to the religions of the World.