The Organizations and Markets group at Chicago Booth investigates the sociology of business, management, markets, and society through an emphasis on the role of social structure. Our leadership in this area is due to our success in bringing decades of sociological research to bear on economic activity. Many aspects of social structure, such as social networks, are now hot topics in business. But social networks is just one example of an area that the Organizations and Markets group has been on the forefront of well before its current popularity, and continues to be an area we advance. Our work typically falls into two broad themes. First, we study social networks in economic life from the sociological tradition and teach courses on the role of networks in strategy, management, and innovation in both MBA and executive MBA, and non-degree executive education programs. These courses serve as platforms for sharing and building upon our intellectual strengths. Two of the selected papers featured here and described below present groundbreaking research in this area. Second, we investigate how social structures influence the emergence of new markets, technologies, and products. This novel research, with ties to marketing and strategy, is noted in the third and fourth papers in this issue. Research in this second area naturally flows into our courses on technology and organizational strategy.