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.
Johannes Strobel, David H. Jonassen, Ioan Gelu Ionas. The evolution of a collaborative authoring system for non-linear hypertext: A design-based research study. Computers & Education, 51(1):67-85, 2008. [doi]
Abstract is missing.