It's a great day in America when a black man can be elected President.

What made it happen was brilliant marketing. Marketing Guys have been writing articles and talking about the Obama campaign for months - and will undoubtedly do so for years to come.

This article by Al Ries, one of the true gurus of modern-day marketing, is the best I've seen yet on the subject. Here are lessons for all of us to learn:

What Marketers Can Learn From Obama's Campaign