If you’ve ever called yourself an agnostic, then you should head over to the Radical Atheist’s blog. He’s written an article on how agnosticism is compatible with atheism. Here is a quote from the article:

I see no inconsistency in being both agnostic and an atheist. I’m an agnostic in the methods I use to discern truth (small a) and appreciate reality. I’m an atheist in my opinion on theism. I do not contend that gods absolutely do not exist. That would contradict my opinions on absolutes. But the probability of something like any god existing, let alone any specific god, without leaving any unmistakable physical evidence of its existence that unequivocally points to the god, is so infinitesimally small that it is barely possible.

I agree with him that agnosticism is more of a frame of mind than a real belief. For practicality’s sake, it seems foolish to me to think sitting on the fence is an adequate response to the question of the existence or non-existence of God. I can respect a person who says they are open to the idea (in some small form), but until solid evidence is shown that there are gods, choosing to have no opinion seems to me a way of validating the improvable assertions of theists.