A few new links (updated 04/18/2007):
Websites
Rants 'n Raves, democratically-moderated, heavily-traveled forum for those unhappy with the restrictions of IIDB.
Nontheist Nexus, a web-zine and resource site.
Freethinking Teens, site includes a moderated forum and opportunities for activism.
RichardDawkins.net and The Richard Dawkins Foundation for Reason and Science.
Rational Responders Forum from the folks who brought you the Blasphemy Challenge.
Books
The God Delusion
(Richard Dawkins, 2006)
Letter to a Christian Nation
(Sam Harris, 2006)
An Infidel Manifesto - Why Sincere Believers Lose Faith
(Gary Lenaire, 2006)
The Reason Driven Life - What Am I Here on Earth For?
(Robert M. Price, Julia Sweeney, 2006)
The Cambridge Companion to Atheism
(Michael Martin {Editor}, available in 2006 or 2007)
Letting Go of God
(Julia Sweeney audio CD)
The Heathen's Guide to World Religions - A Secular History of the One True Faiths
(William Hopper)
Parenting Beyond Belief - On Raising Ethical, Caring Kids Without Religion
(Dale McGowan {editor}, 2007) (Foreword by Michael Shermer, contributors include Richard Dawkins, Penn Jillette, Julia Sweeney, and Dr. Donald B. Ardell)
A 21st Century Rationalist in Medieval America - Essays on Religion, Science, Morality, and the Bush Administration
(John Bice, 2007)