"We sort of woke a sleeping giant," says Christopher F. Silver, a researcher at theUniversity of Tennessee at Chattanooga. "We're a bit overwhelmed actually."

Silver and his project manager, Thomas Coleman, recently released a studyproposing six different types of nonbelievers – from strident atheists to people who observe religious rituals while doubting the divine.

The study clearly struck a chord, particularly among triumphal atheists and uneasy believers. Articles appeared in in Polish, German, Russian and Portuguese, Silver said.

Here on CNN.com, our story "Behold, the Six Types of Atheists" garnered about 3.14 gazillion hits and thousands of comments.

Half the fun seemed to lie in atheists applying the categories to themselves, kind of like a personality test.

"I guess I'm a 1-2-4 atheist," ran a typical comment.

Other commenters questioned the study's categories, methods, and even the religious beliefs of its authors.

Silver and Coleman agreed to answer our readers' questions via email from Tennessee. Some of their answers have been edited for length and clarity.