This chapter examines how the idea of the 'learning ecosystem' has emerged in the discussion on learning at work. It presents how the 'ecosystem' discussion has to some extent replaced former conceptions and theorizing related to learning and work in organizations, such as learning organizations, learning regions, university-government relations, and national innovation systems as well as networks and the actor-network approach; and examines the expansion of the utilization of the new 'ecosystem' concepts. The transformation toward the new 'ecosystem' discussion is related to the adoption of new technologies for information sharing, exchange and communication as a result of industrial revolutions, the latest being 'Industrial Revolution 4.0'. The adoption of new technologies has coincided with the shift from the classic bureaucratic organization toward a landscape of ecosystems. In conclusion, we discuss the demands set for research on learning and work related to the landscape of ecosystems.