The social indicators movement, which has attained world-wide significance, is based on awareness of the increasing necessity for a conscious regulation of social processes, as well as on the successful utilization of the social sciences. Both of these processes depend on: the character of the social order in the different countries, conceptions of the nature and functions of science, and the nature and functions of social indicators. Irrespective of international differences, however, many common problems exist; this makes their discussion possible despite different philosophical and sociological paradigms. Two main problems are addressed: (1) the definition of the concept of “system of social indicators” and especially “unity of objective and subjective indicators”, and (2) the definition of the conditions for their most effective involvement in the purposeful regulation of the social processes.