In some measure, much of the social change we have witnessed in America and elsewhere during the last several decades can be attributed to social movements, large and small. The civil rights movement (CRM), the environmental movement, the women's movement, and the gay rights movement are among the larger and more visible motors of social change. Other, less visible, movements also have promoted significant changes in social policy, raised our consciousness about issues and problems, and even altered our behavior in everyday life, at home, with friends, and at work. The anti–drunk driving movement, the coalition of groups opposed to smoking, the movement for pay equity reform, and the animal rights movement may not have loomed as large on the political landscape as other movements, but they have significantly contributed to changes in the way we live. Movements that developed as spin-offs or amalgams of larger movements also have led to social change. Consider, as examples, the environmental justice movement, which emerged as an outgrowth of the environmental and civil rights movements, or the movement for pay equity reform, which grew out of the interplay among the CRM, the women's movement, and the more progressive streams of the labor movement. Of course, social movements are themselves created out of broad social processes and social forces, and are accompanied by diffuse political and social processes that contribute to social change. Nevertheless, it is useful to ask how and where social movements contribute to social change.