SUMMARY The science and technology subject group within the reference department of the University of Tennessee Libraries brings together librarians from reference and other departments who have collection development and subject liaison duties. The authors describe the group's composition and explain how the sci/tech librarians work cooperatively toward goals set by both the Libraries' Reference & Instructional Services and Collection Development & Management departments. The sci/tech group's primary cooperative functions are to facilitate librarians' mutual assistance in organizing projects, share insights for reference and collection development/management activities, plan instruction efforts, discuss web site development, promote mastery of resources and tools, and address other concerns. The subject group enables librarians to clarify plans and procedures and to come to grips with complicated budget matters. A fundamental benefit of group discussions is that they provide an opportunity to explore viewpoints from librarians outside the reference team, leading to more well-rounded decisions. Together with the other subject groups, the sci/tech librarians and their coordinator identify major needs for information and work to provide solutions that improve library services to the academic community.