Dale Wolf is one of my colleagues. While he is from the dark side of marketing, I've enjoyed working with him several times in the past. His blog on Contextual Marketing is an interesting read and well worth keeping an eye on, even if you are not in marketing.
One of his most interesting posts is on marketing by Vision versus marketing by Research. These terms are overloaded and not the ones I would use for the concepts Dale is driving at, but the concepts behind his post are worth a few minutes of thought. Take a look at Dale's post and my comments at: