For more resources on Conditional Immortality (Annihilationism):
All authors are from an Evangelical background.
The Conditional Immortality Association of New Zealand has excellent information on their website: www.afterlife.co.nz.
Excellent information from evangelicals at www.rethinkinghell.com
An excellent blog at http://thinkabouthell.blogspot.com
For many more articles on the Biblical Doctrine of Conditional Immortality visit: www.truthaccordingtoscripture.com.
On a more seminary level, the classic book by Edward Fudge, The Fire that Consumes, is also highly recommended (see reviews above). Visit www.edwardfudge.com for more articles on this topic.
UPDATE: Edward has just released his latest book on the topic called Hell: A Final Word. It can be found on Amazon. Also, a full length motion picture movie was just made about his life. It is called Hell and Mr. Fudge.
Read the excellent article, The Destruction of the Finally Impenitent, by noted Evangelical scholar Clark Pinnock.
Dr. Roger Galstad pastors the Eau Claire, WI congregation of Grace Communion International and the affiliated Valley Bible Church of Whitehall and La Crosse, WI. He has written a book entitled, Man’s Ignorance and God’s Grace: A Case for Conditional Immortality.
William Robert West has put a great deal of research into, Resurrection and Immortality at www.robertwr.com.
NOTE: Mr. West takes the amillennial position when dealing with Israel, so in that one area I would not agree with him.
Also read, HELL: Eternal Torment or Complete Annihilation? by Jeremy K. Moritz.