To measure how technical communicators can improve an organization's return on investment, reductions in calls for support, increases in customer satisfaction, or increases in workers' productivity may be measured. The authors describe a project funded by the Society for Technical Communication in which they are studying how technical communicators add value by increasing an organization's return on its investment. A project questionnaire is included.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>