||Atheism, literally meaning "no god", is someone who is "without belief in any gods". I have no belief in any gods. I do not "believe that there are no gods". A small quibble, but one that most atheists, including myself, feel is important to clarify.
One can also go a step further and demonstrate that there are two forms of atheism-- weak (implicit) and strong (explicit). Weak atheism simply means "not theist", and some may argue that this definition also includes agnostics. Strong atheism (closer to my personal understanding) explicitly denies the existence of any gods--a position that will usually require support at some time.
Agnosticism means, simply, "without knowledge" (it is not a "wishy-washy" standpoint on theism or atheism, mind you, and many agnostics are offended by the Pascal's Wager-type view many people have with regard to agnosticism). Likewise, agnosticism can be categorized as weak (without knowledge of any gods, but not excluding the possibility of the existence of any gods) and strong (the claim that it is impossible to know whether any gods exist). I will argue that agnostics have chosen-- they have chose to not say definitively either way that any gods do or don't exist.
Mad Scientist's miswording is what leads to the oft used, and fallacious, argument "isn't atheism also a religion?", meaning that atheism is a belief system based on the assumption that there aren't any gods. Rather than give you a lengthy answer here, this article clears things up quite nicely. I'm still willing to answer any resulting questions, however.
Note that atheism is not a religion, but neither are agnosticism or theism for that matter. The confusion of "religion" with any concept has to do with the possible existence of god is common mistake, but a mistake nonetheless .
If there is a Christian-esque God, Agnostics and Atheists will have both refused to accept Him, and can really be lumped together, and if there is no God, they are both dead in the end and it doesn't matter.
- The denomination of the god in question is irrelevant: Atheists have no belief in any god, be it the Christian, Buddhist, Muslim, Hindu, Aboriginal, et al, god or gods. Agnostics have no knowledge of the existence of any gods, and again, which god, be it the Christian god, etc., is irrelevant.
- Atheists and agnostics have not "refused to accept" any gods. Atheists have no belief in any gods. Agnostics have no knowledge of any gods. I hope this is becoming clearer.
- Everyone dies in the end, regardless of whether any gods exist, and regardless of our individual atheism, agnosticism or theism. Belief or non-belief in any gods has nothing to do with the biological state known as "death" to which all living organisms are subject. Whether or not one spends time believing in any gods while alive is the topic. And it would seem to matter very much if, a: A god or gods exist, and all humans who die are subject to said god'(s) post-death... itinerary, or b: No god or gods exist, and after death all humans simply cease to live. There is no "after life", and humans are not subject to said god'(s) judgment as to where one will spend "eternity".
Or at least, it would matter quite a bit to those involved, I would imagine. ;)
Your denial is beneath you, and thanks to the use of hallucinogenic drugs, I see through you. Bill Hicks