The Center for Research Libraries (also known by its acronym, CRL) is a consortium of North American universities, colleges, and independent research libraries, based on a buy-in concept for membership of the consortia. The consortium acquires and preserves traditional and digital resources for research and teaching and makes them available to member institutions through interlibrary loan and electronic delivery. It also gathers and analyzes data pertaining to the preservation of physical and digital resources, and fosters the sharing of expertise, in order to assist member libraries in maintaining their collections. The Center for Research Libraries was founded in 1949, as the Midwest Inter-Library Center (MILC). The traditional role of CRL was as an aggregator of tangible collection mate