Tren Griffin is a Microsoft employee. He was previously a partner in Eagle River, a private equity firm run by Craig McCaw that made investments in the telecommunications and software industries, including McCaw Cellular, Nextel, Nextel Partners, XO Communications, Teledesic, and a number of start-up companies. He spent five years as a business consultant in Korea and Australia throughout his early career. At 25iq.com, Tren writes on investing and other issues. The Global Negotiator: Developing Good Commercial Connections Anywhere in the World, Korea's Tiger Economy, Taiwan's Economy, Ah Mo: Legends from the Northwest, and More Ah Mo are among his works.