From the Richard Dawkins Foundation for Science and Reason:
There was a time, not very long ago, that atheism and non belief were rather niche fields of study. But as the ranks of both the openly atheist and the religiously unaffiliated have grown, Nones and nonbelievers have become far more tantalizing subjects for academia and the media. It seems that every week, we see new surveys and studies that seek to better understand the secular community and what societal factors are driving its growth.
Here is a fascinating study of the nonreligious around the world, made all the more intriguing in that it was paid for by the Templeton Foundation, an organization that lavishly funds research to try to advance the (mistaken) idea that religion and science are perfectly compatible. Not strange enough for you yet? Its findings were submitted to the Vatican. Despite these red flags, the report does a reasonable job dispelling some myths and old assumptions about atheists worldwide.