"Gary Vaynerchuk has seen the future of marketing. The Thank You Economy shows how it's built on both the time-honored techniques of listening to and appreciating customers and newer services like Twitter that allow you to engage directly with customers at unprecedented scale and speed. The book, like Gary, is also a lot of fun and full of passion." --Dick Costolo, chief executive officer, Twitter Gary Vaynerchuk, the New York Times bestselling author...