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.
Wai-Tat Fu, Wei Dong. Collaborative Indexing and Knowledge Exploration: A Social Learning Model. IEEE Intelligent Systems, 27(1):39-46, 2012. [doi]