Some definitions`Co-operation'' is the word one most often encounters in library literature when reading about joint projects between libraries. Occasionally the word``co-ordination'' appears, and recently a few authors employed the word``collaboration''. The terms are generally used synonymously; however, researchers examining joint venture activities among the non-profit sector organisations view each term as representing a different level of activity.In researchers' view (Alaszewski and Harrison, 1988;Light and Pillemer, 1984;Means et al., 1991), co-operation is the level with the least interaction between participating organisations. Essentially there is no formal common mission, structure, or planning effort. Participants share information as needed and retain all authority with virtually no risk. Thus``co-operation'' should be the easiest level to achieve. However, the rewards to those involved are both variable and unpredictable. Further, there is little stability to such efforts and they tend to be of short duration.Co-ordination is the middle level of activity. There are discussions and one or more generally agreed to mission(s) or goals. There may be written documents that outline a common structure and planning/operation process but not in an official/legal document. While authority remains with the participating institutions there are increased risks for all the participants because of the somewhat more formal structure. There may or may not be contributions of individual resources to the co-operative activity. Likewise there are some common rewards expected by each of the participants and that the rewards will be more or less equal.Collaboration is the highest level of activity in which there is a very formal, often legal, structure created by the participants. The structure includes the assignment of some authority, planning and operational activities to the newly created entity based on a set of common missions and goals. A collaborative effort also involves participants contributing some of their resources (money, people, time, physical space, etc.) to the program. The expectation is the rewards of the activity will be jointly shared.