Abstract: Smart urban technologies have started to become the foundation of new and substantial "intelligent" infrastructures over the past two decades, especially in the affluent regions of the developed world, such as Madrid, New York, Paris, San Francisco, and Singapore. The spread of the smart city idea has also significantly impacted how cities and their surrounding regions are planned and developed. Due to the growing interest in the subject, this special issue focuses on two closely related ideas: smart cities and innovative urban technologies. It also includes scholarly writings that offer some priceless insights into how our cities and societies produce knowledge and the spatial effects of information and communication technologies (ICTs).