PART ONE: TOWARD A ROUND-EARTH PARADIGM FOR THE VOLUNTARY NONPROFIT SECTOR Definitions and Metaphors Revising Flat-Earth Maps The Rest of the Voluntary Nonprofit Sector PART TWO: THE DISTINCTIVE NATURE OF GRASSROOTS ASSOCIATIONS Formational Characteristics Internal Guidance Systems Internal Structure Internal Processes Leaders and Environments Life Cycle Changes Impact and Effectiveness PART THREE: THEORETICAL PARADIGMS AND CONCLUSIONS Flat-Earth Paradigms and the Round-Earth Paradigm in Outline Some Conclusions and Forecasts The Advent of Homo Voluntas