Continuity of care necessitates communication between the primary providers of inpatient and outpatient care. Communication requires identification of providers in addition to clinical information. We have constructed a web-based SignOut System to improve provider identification. The web-based SignOut System correctly identified the provider for 100% (34/34) of patients in 1997 and 93% (37/40) of patients in 1998. The hospital bed census correctly identified the attending provider for 50% (17/34) of patients in 1997 and 73% (29/40) in 1998. When analyzed by attending type (i.e., service and private,) the SignOut System correctly identified 86% of service providers in contrast to the hospital bed census that correctly identified 57% of service providers. Both the SignOut System (100%) and the hospital bed census (95%) had superior results in identifying private attendings. The web-based technology provides a familiar user interface and ubiquitous workstation access.