Blockchains have become increasingly important for organizing contemporary economic and social activities. This Element offers a deeper understanding of blockchains to both management scholars and practitioners, with an emphasis on blockchains' strategic implications for fundamental issues in organizing. It provides a critical examination of the core themes, theoretical lenses, and methodologies used in blockchain research in business and management scholarship. Furthermore, it offers an in-depth discussion of why and how blockchains offer a new way of organizing, providing profound implications for three major issues of strategic organization: contracting, trust, and organizational design. It also discusses several limitations of the technology in its current stage of development. Finally, this Element points to the implication of blockchains on both scholarly research and business practice.