The Atheist Avalanche

THE ATHEIST AVALANCHE....Last September Richard Dawkins published The God Delusion and Sam Harris published Letter to a Christian Nation. In January Victor Stenger published God: The Failed Hypothesis. This month Christopher Hitchens is out with God is Not Great: How Religion Poisons Everything.

I'm curious: have I just not noticed books like this before? Or is it really true that there's a sudden avalanche of popular books extolling the virtures of atheism? (Or, in any case, denigrating organized religion.) Is there any particular reason for this?