Interinstitutional cooperation is becoming more and more evident today as colleges and universities seek new ways to expand facilities, offer innovation, and strengthen departments. In this booklet, 91 different types of cooperative arrangements have been selected from different disciplinary areas to illustrate the kinds of progress that can be achieved in interdepartmental or interdivisional programs, regardless of the nature of that discipline. For instance, while some description is given of the electronic music laboratory sponsored by Five Colleges, Inc., the interest in maintaining a specialized laboratory facility is not limited only to music faculty, but may encompass physicists, psychologists, and others as well. If cooperation is to be seen as an appropriate vehicle for strengthening any departments, however, arrangements employed shall have to be planned to meet the real needs of these departments. Joint ventures should be initiated because they are desirable, not solely because they are possible. (Author/HS)