Over the course of the past few years a loosely-organized community of more than a thousand companies has overturned the tech industry. Their work is visible in smartphones, wearable sports and health monitors, thermostats that get to know our lives and cars that can prevent crashes. Like a thousand Davids against a few Goliaths, these companies have also quietly but permanently changed competition in the tech industry. Many of the large, monopolistic companies we have come to believe we need: the too-big-to-fail companies of technology, have now become all but irrelevant. This is the first book to tell the story. The author is an expert on leadership and strategy in large-scale businesses and social networks. He was given open access to the community, and chronicled the story through the voices of its people.