Abstract
William James wrote about varieties of religious experience
(See http://etext.virginia.edu/toc/modeng/public/JamVari.html)
but I don't know of anyone who has documented the varieties of atheism. Unlike James I don't here attempt to collect data about what atheists say and do, and how they came by their atheism. This is, instead, an analytical paper describing how various sorts of atheistic position can arise in opposition to various sorts of theistic position. Clarity about this could help to make debates about atheism and theism more fruitful.
This document attempts to make clear that there are several forms of atheism, of varying ’strength’ in their opposition to theism, and that there are several types of theism to which each type of atheism can be opposed. This means that instead of atheism being just a single viewpoint it covers a multitude of cases, each definable by a type of theism and a type of objection to that form of theism.
The document is freely available online here:
http://www.cs.bham.ac.uk/research/projects/cogaff/misc/varieties-of-atheism.html