Please read this fascinating account of Amazon.com. I apologize in advance for its length, but please read it all. You need to start finishing reading articles you start.
Then write a 500 word essay with an original title where you do two things First, identify tw things in the article that you find most fascinating. Second, advise Jeff Bezos on how to take Amazon to the next level, maybe toward a challenge to Walmart.
http://www.businessweek.com/printer/articles/158534-the-secrets-of-bezos-how-amazon-became-the-everything-store