2 points awarded for adding The World Is Flat: A Brief History of the Twenty-first Century on 12/09/2009
2 points awarded for adding Linked: How Everything Is Connected to Everything Else and What It Means on 12/09/2009
2 points awarded for adding Collapse: How Societies Choose to Fail or Succeed on 12/09/2009
2 points awarded for adding Guns, Germs, and Steel: The Fates of Human Societies on 12/09/2009
2 points awarded for adding Freakonomics: A Rogue Economist Explores the Hidden Side of Everything on 12/09/2009
2 points awarded for adding The Tipping Point: How Little Things Can Make a Big Difference on 12/09/2009
2 points awarded for adding Collapse: How Societies Choose to Fail or Succeed on 12/09/2009
2 points awarded for adding The Wisdom of Crowds: Why the Many Are Smarter Than the Few and How Collective Wisdom Shapes Business, Economies, Societies and Nations on 12/09/2009
2 points awarded for adding The Wisdom of Crowds on 12/09/2009