Social Impact Assessment (SIA) is a type of mandated research which is typically implemented during the planning stages of development projects. Unfortunately, such data are often merely used to evaluate the viability of projects, and are seldom consulted as secondary sources of information once they have served their primary role. Such tendencies, unfortunately, relegate potential sources of data to file cabinets. Provides an overview of what SIA is, and how it can be adapted to serve the needs of strategic planners in the private sector to facilitate the use of this source of secondary data. Also presents the results of a questionnaire on SIA sent to a sample of international marketing managers.