One of the many good discussions we have had in my family has the question: “what is the gospel.” This question has stemmed out of the fact that the gospel we typically preach seems to be somewhat incomplete (meaning, we often focus on certain parts of the good news at the expense of other just as important parts of the good news). Dallas Willard has some great discussion on how the gospel we preach is one of “sin management” (The Divine Conspiracy – its a deep read, but try and read at least the first few chapters!)
Anyways, to my point, Scot McKnight has written some great thoughts on “What is the Gospel” at Next Wave. I personally think it would be worth your time and effort…