Introduction to Christian apologetics

Rick Wade's essay is a pretty good introduction to Christian Apologetics:

"Throughout the history of the church, Christians have been called upon to explain why we believe what we believe. The apostle Paul spoke of his ministry as "the defense and confirmation of the gospel." Peter said we need to "be ready to make a defense to everyone who asks you." This activity of the church came to be known as apologetics which means "defense." But, if it is important that we defend the faith, how do we do it?"