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.
Justine Cassell, Timothy W. Bickmore. External manifestations of trustworthiness in the interface. Communications of the ACM, 43(12):50-56, 2000. [doi]
Abstract is missing.