With increased cooperation and coordination, it now is appropriate to review major changes that have led to an unprecedented level of interdependency among institutions. The current growth rate of interinstitutional cooperation is approximately 12 percent per year. This is inseparably linked in many respects to increased levels of statutory coordination and regulation by state agencies and boards and "1202" commissions. Examples of institutions and states leading the way in cooperative planning is the New Hampshire College and University Council, the Northeastern Ohio Universities Colleges of Medicine, the states of Virginia, New York, Pennsylvania, and Illinois. Changes are also occurring in types of institutions participating. Five years ago over 75 percent of the members came from private institutions, while less than 4 percent came from junior colleges. Today more than 40 percent came from public institutions and 13 percent from junior colleges, as the membership of private institutions still increases. The cooperative movement is also becoming increasingly international and new emphasis is being developed in the areas of continuing education, military programs, and colleges of art. Title III has made a positive contribution to consortia, but it does not encourage continuing voluntary cooperative relationships. Despite this fact and the little research done on consortia, the growth of voluntary cooperation has been phenomenal. (Author/KE)