Footprints: Jewish Books Through Time and Place is a database and research project designed to trace books-in-motion. It brings together acts of careful individual research with large-scale quantification and mapping: using inscriptions, owner’s marks, and catalogues of copies of early Jewish printed books. The project is a cooperative endeavor of four project directors, both faculty and librarian, from different institutions each representing different fields of Jewish Studies. With the technical expertise of partners at a university-based center for teaching and learning, a mix of paid and volunteer student, post-doctoral, and library based researchers, the project directors have created a database that is transforming the way research on the history of the book is done. The chapter will address collaboration in three aspects: between project directors; between the project and its contributors (individual and institutional, public and private); and between contributors and users. The chapter argues for a new model of iterative projects that relies in part on networked collaboration rather than only on operations in concert by a small, bounded group.