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.
Kum-Yew Lai, Thomas W. Malone, Keh-Chiang Yu. Object Lens: A Spreadsheet for Cooperative Work. ACM Trans. Inf. Syst., 6(4):332-353, 1988. [doi]
Abstract is missing.