I think the interesting thing is that atheists seem to be stuck on the word "religion", which just means "man trying to interpet God", when atheism is just another interpretation of the world around us.
I just find that atheism seems to try to suggest they are the opposite of religious, when it seems there are a few very obvious similarities, it just does not believe in a divine. To me it is more of a response to religion and can be seen throughout the core of its beliefs. But there are beliefs, it is an "ism", which denotes a distinctive system of beliefs, myth, doctrine or theory that guides a social movement, institution, class or group and as such can have the same pitfalls of any "religion" as an ism.
To me there is a distinct difference from not following religion whatsoever and being an atheist. That's pretty much my point here.