This paper explores the notion of social capital and its potential role in being able to sustain IT adoption and use in micro-enterprises. Based on a review of the literature in the areas of social capital, IT adoption and micro-enterprises, and sustainable development, we suggest that there is a gap in our understanding of what is known about social capital as it impacts micro-enterprise activities and subsequently sustainability. We conclude the paper by discussing both the importance of social capital as well as some arguments against it for sustaining micro-enterprises. In addition, research issues that need to be addressed in this domain are also highlighted.