Although the fields of organization theory and social movement theory have long been viewed as belonging to different worlds, recent events have intervened, reminding us that organizations are becoming more movement-like more volatile and politicized while movements are more likely to borrow strategies from organizations. Scholars who have focused primarily on structure and stability have much to learn from colleagues who have focused on turmoil and conflict and vice versa. The topics covered range from globalization and transnational social movement organizations to community recycling programs.