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.
Julita Vassileva, Lingling Sun. Evolving a Social Visualization Design Aimed at Increasing Participation in a Class-Based Online Community. Int. J. Cooperative Inf. Syst., 17(4):443-466, 2008. [doi]
Abstract is missing.