I just read an interesting news article entitled Angry Atheists are Hot Authors. Here's the intro:

And this was the closing:The time for polite debate is over. Militant, atheist writers are making an all-out assault on religious faith and reaching the top of the best-seller list, a sign of widespread resentment over the influence of religion in the world among nonbelievers.
Could be good news for many of us.Given the popularity of the anti-religion books so far, publishers are expected to roll out even more in the future. Lynn Garrett, senior religion editor for Publishers Weekly, says religion has been one of the fastest-growing categories in publishing in the last 15 years, and the rise of books by atheists is "the flip-side of that."
"It was just the time," she said, "for the atheists to take the gloves off."