Sebastian Ryszard Kruk, Mariusz Cygan, Adam Gzella, Tomasz Woroniecki, Maciej Dabrowski. JeromeDL: The Social Semantic Digital Library. In Sebastian Ryszard Kruk, Bill McDaniel, editors, Semantic Digital Libraries. pages 139-150, Springer, 2009.
The initial research on semantic digital libraries  resulted in the design and implementation of JeromeDL ; current research on online social networking and information discovery delivered new sets of features that were implemented in JeromeDL. Eventually, this digital library has been redesigned to follow the architecture of a social semantic digital library (see Chapter “Architecture of Semantic Digital Libraries“ and Sect. 6). JeromeDL describes each resource using three types of metadata (see Fig. 2): structure, bibliographic (see Chapter “Digital Libraries and Knowledge Organization” and Chapter “Bibliographic Ontology”) and community (see Chapter “Community-aware Ontologies”). It delivers services leveraging each of these information types. Annotations based on the structure and legacy metadata (see Sect. 2), and bibliographic ontology (see Sect. 3) are rendered to the users in one, mixed, representation of library resources (see Fig. 1). Community annotations are managed by separate services, such as social semantic collaborative filtering  or blogging component (see Sect. 4.1 and Sect. 4).