IT acceptance is generally considered a mature research field. However, we are persuaded that current approaches are underestimating the importance of social factors and group influence on individual beliefs. This paper adopts a complementary approach to previous researches based on normative assumptions. A social capital perspective is embraced to allow us to focus on the nature and quality of relationship among group members, especially those related to IT adoption. A theoretical model is proposed in order to have a usable theory. Empirically testable propositions are drawn, together with theoretical implications and possible future researches.