Internet of Everything (IoE) is a promising paradigm that integrates the Internet of Things (IoT), Industrial Internet, Internet of People, and many Internet-based paradigms to transform the industry, society, and people lives. It provides seamless integration of intelligent devices -- with sensing, identification, processing, communication, networking capabilities, Big Data (machine learning, analytics, and distributed computing), and human sensors (collaboration, intelligent cognition, and social networks). IoE brings excellent opportunities to improve changes in society with collaborative intelligent systems. However, these new technologies also bring significant challenges and do not address major existing issues, including interoperability, reliability, and intelligence management. Awareness of these issues is required before IoE applications can be widely deployed. This work introduces an observatory for cataloging IoE applications. Registering these applications will support researchers, developers, and users to exchange more information, design improved IoE applications, facilitating the composition of different enablers (human and non-humans). The main contributions of this work include the proposal of a technology platform, the IoE Database (IoEDB), that enables the distributed and collaborative cataloging of IoE initiatives and provides the evolution of a 'live' IoE knowledge-based taxonomy to support interoperability and awareness of IoE enablers.