These links have been moved from my Best of the Web page, due to the fact that they reflect my personal opinions rather than a semi-objective survey of web sites.
It is important […] to note the difference between the strong and weak atheist positions. “Weak atheism” is simple scepticism; disbelief in the existence of God. “Strong atheism” is an explicitly held belief that God does not exist. […] There is a qualitative difference in the “strong” and “weak” positions; it’s not just a matter of degree.
This page also contains links to several worthwhile threads.