Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Stephen J. H. Yang, Irene Ya-Ling Chen, Norman W. Y. Shao. Ontology Enabled Annotation and Knowledge Management for Collaborative Learning in Virtual Learning Community. Educational Technology & Society, 7(4):70-81, 2004. [doi]