UberKuh

Thanks. I considered noting the overlap, but failed to do so. I agree that it is common to find atheists who believe for several reasons.

Regarding skeptical atheism, which seems, if I understand you correctly, to be similar to what some might call weak atheism, I would suggest that it could be added as another type, but that it could just as well be part of one or more of my B types. The type of atheist you mention is aware of a claim for some god's existence but finds no logical, doctrinal, ethical, emotional, and/or intuitive reason to accept that claim as true. A lack of evidence is the same as evidence that does not meet a certain requirement, in this case, cause for belief in a god.

I want to add that, in this article, the D type represents disbelief, which is used in a passive sense. Austin Cline of atheism.about.com has written an informative article that explains how atheism is defined. I had already written my article above when I read Austin's, but his article motivated me to post mine.