One of five working groups established as part of a collection analysis project at the University of Colorado, Boulder (UCB), the Task Force on Resource Sharing was organized in order to determine the University Libraries' current purpose and practice in resource sharing and to recommend directions for the future. Their report is presented in three parts: Collections, Resource Sharing (including Bibliographic Access, Cooperative Arrangements, and Document Delivery), and the National Scene and Future Developments. Each section includes a description, an evaluation, and recommendations. Topics covered include the effects of decreased funding for acquisitions; UCB involvement in cooperative collection development programs at the state and national levels, especially the Colorado Alliance of Research Libraries (CARL); an examination of bibliographic access systems, e.g., the CARL Union List of Serials, the Colorado Union Catalog (CUC), and services from OCLC, the Library of Congress (LC), the Center for Research Libraries (CRL), and the Research Libraries Information Network (RLIN); document delivery by courier, the U.S. Postal Service, and United Parcel Service; national resource sharing concerns; and both national and local resource sharing development projects. Seven conclusions are listed, and a 48-item bibliography is provided. (ESR)