The next step after smart cities is the creation of digital or smart nations. A digital nation requires a national transformation across diverse institutions including the urban and rural areas of a society. Besides diverse social innovation initiatives, sustainability is a key aspect, so that rather than greenfield projects, long-term solutions will involve brownfield, smart city projects. A digital transformation to a digital or smart nation requires a great deal of innovation in planning, process re-engineering and execution. Whereas research work and policy actions are traditionally focused on a city level, these efforts need to be widened to the national level. Existing city-scale theories and frameworks may be used and adapted to meet the larger-scale needs of the future smart nations. The new issues and research challenges which arise need to be addressed through interdisciplinary approaches. This special issue on the theme of digital nations attempts to address the need in the academic literature to provide a better understanding of digital nations.

Although blockchain has attracted a great deal of attention from academia and industry there is a lack of studies on acceptance drivers. This study explores blockchain acceptance by mining the collective intelligence of users on Twitter. It maps blockchain user acceptance drivers to technology acceptance constructs. The analysis shows that users are attracted by security, privacy, transparency, trust and traceability aspects provided by blockchain. On Twitter more discussions on blockchain benefits than on drawbacks. Initial coin offering (ICO) is extensively discussed. The study provides guidelines for managers and concludes by presenting the limitations of the study along with future research directions.