To share and share alike: the basic ground rules for inter-institutional data sharing / James F. Trainer -- Benefits and potential problems associated with effective data-sharing consortia / Mary M. Sapp -- Data-sharing models / Susan M. Shaman, Daniel Shapiro -- Creating a cost-effective data exchange / E. Raymond Hackett -- Data sharing and keeping pace with changing technologies / James C. Fergerson -- Coming aboard: making the decision to join a data-sharing organization / James F. Trainer -- Appendix A: A Computer and network resource guide to support data sharing / James C. Fergerson -- Appendix B: Data-sharing organizations, resources, and opportunities / James F. Trainer.