Here are some good posts on preaching:
Why the Pastor Must Be Distracted With God – Drew Martin (via Trevin Wax)
In response to such a situation the faithful preacher must refuse to agree to the tacit assumption of modernity that the other concerns of life are more important than God. The pastor must be deeply formed in the classic disciplines of the Christian faith so that his life will not be disoriented. He must be correctly oriented if he would serve as a guide to a lost culture. The pastor must be “distracted” with God.
A Watchman on the Walls – Kevin DeYoung
For the watchman on the walls must give a warning; he must speak of this judgment which is to come; he must herald the glorious salvation found in Christ alone; he must share the glad tidings of peace on earth and good will toward men; he must tell the hard news that we need a Savior, the unpopular news that there is only one Savior, and the unimaginably good news that there is one who actually saves.
The Preacher’s Cheat-Sheet – Tim Challies
Here are two lists that have been very helpful to me. I combine them into what I affectionately call my Preacher’s Cheat-Sheet.