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.
Heather L. O Brien, Elaine G. Toms. What is user engagement? A conceptual framework for defining user engagement with technology. JASIS, 59(6):938-955, 2008. [doi]