Check out this article by Al Mohler on the diminishing belief in hell among evangelicals.
"Undoubtedly, much of this can be traced to currents in the larger culture, where non-judgmentalism, a therapeutic view of life, and a thoroughly modern view of fairness lead many to reject hell as a place of everlasting torment and punishment for those who never come to faith in Christ.
"As Professor Segal observed, "They believe everyone has an equal chance, at this life and the next." Thus, "hell is disappearing, absolutely."
"That this is true within the culture at large is not surprising. But when those who claim identity as evangelical Christians begin to modify the doctrine, this should set off alarms.
"No doctrine stands alone. There is no way to modify belief in hell without modifying the Gospel itself, for hell is an essential part of the framework of the Gospel and of the preaching of Jesus. Hell cannot be remodeled without reconstructing the Gospel message.
"Here is a sobering thought: Hell may disappear from the modern mind, but it will not disappear in reality. God is not impressed by our surveys."