The book is devoted to the study and generalization of a variety of information resources used in education, science and production activities. It shows that the evolution of informatics and informatization of society determines the growth and emergence of new information and electronic resources. Electronic resources and electronic documents were studied. Information models as procedural and descriptive resources were studied. Geodata as a new system information resource are studied. Components of enterprise electronic resources as the basis for digital economy have been considered. Investigated unified information space of the industry and unified information space of the enterprise as an information resource and the potential of information activity. Metamodelling as a specific information resource is considered. Logical constructions as procedural resources are investigated. Computational resources as a type of information resources are described. The book is intended for specialists in the field of information technology and scientific and technical activities.