The chapter includes a comprehensive review of relevant published literature from the past five years. Through this review, the chapter explores the use of emerging technology-based services and systems such as intelligent libraries, recommender systems, fuzzy logic, and recommender system chatbots in the field of library and information science. The aim of this review is to provide up-to-date insights and information for professionals and researchers interested in utilizing these technologies to improve library services. The chapter highlights how these technologies can enhance the user experience and resource discovery. The chapter begins by introducing the concept of intelligent libraries and the role of emerging technology-based services and systems. It then explores the use of recommender systems and fuzzy logic in intelligent libraries, citing relevant published literature and discussing the benefits they bring to users. In the end, it discusses the potential challenges and limitations of these technologies, as well as best practices for their implementation and maintenance.