In recent years more and more information has been made available on the Web. High quality information is often stored in dedicated databases of digital libraries, which are on their way to become expanding islands of well organized information. However, managing this information still poses challenges. The Semantic Web provides technologies that are about help to meet these challenges.
In this article we present JeromeDL, a full fledged open-source digital library system. We exemplify how digital library content management can benefit from the Semantic Web. We define and evaluate browsing and searching features. We describe how the semantic descriptions of resources and users profiles improve the usability of a digital library. We present how digital libraries can be interconnected into one heteroge- neous database with use of semantic technologies.