Although small group research has been somewhat marginalized within sociology during the past decades, the authors argue that a focus on interaction arenas can contribute to a more complete analysis of social life. Specifically the authors examine three central domains of sociological analysis—culture, organizations, and the economy—to demonstrate how a focus on the mesolevel of analysis allows for a merging of macrosociology and microsociology. The authors draw on the perspective of sociological miniaturism to provide a model for cross-level research.