The contributors to this volume view digital libraries (DLs) from a social as well as technological perspective. They see DLs as sociotechnical systems, networks of technology, information artifacts, and people and practices interacting with the larger world of work and society. As Bruce Schatz observes in his foreword, for a digital library to be useful, the users, the documents, and the information system must be in harmony.The contributors begin by asking how we evaluate DLs -- how we can understand them in order to build better DLs -- but they move beyond these basic concerns to...