The internet of things (Io T) is quickly growing into a large industry with a huge economic impact expected in the near future. However, the users’ needs go beyond the existing web-like services, which do not provide satisfactory intelligence levels. Ambient intelligence services in Io T environments is an emerging research area that can change the way that technology and services are perceived by the users. Ambient Intelligence Services in Io T Environments: Emerging Research and Opportunities is a unique source that systemizes recent trends and advances for service development with such key technological enablers of modern ICT as ambient intelligence, Io T, web of things, and cyber-physical systems. The considered concepts and models are presented using a smart spaces approach with a particular focus on the Smart-M3 platform, which is now shaping into an open source technology for creating ontology-based smart spaces and is shifting towards the development of web of things applications and socio-cyber-physical systems. Containing coverage on a broad range of topics such as fog computing, smart environments, and virtual reality, multitudes of researchers, students, academicians, and professionals will benefit from this timely reference.