SCHOLNET aims at developing an enhanced digital library testbed to support net- worked scholarly communities. In addition to traditional services, support will be provided for non-textual data, hypermedia annotation, cross-language retrieval, and personalized information dissemination. The testbed will enable members of a net- worked community to learn from, contribute to, and collectively build on the community"s discipline-oriented digital collections. It extends ETRDL, an existing European digital library for grey literature implemented on an open architecture, with new services. These will be developed as separate modules, based on existing technologies and software components. Extensive experimentation will be conducted to assess to what degree the SCHOLNET system functionality and performance meet the requirements of a large scholarly community.