To operationalize the Technical Assistance Brokerage System, the first major task called for the development of a taxonomy of training and technical assistance services specifying requisite skills and skill clusters by the dimensions of client type, stages of dissemination, and levels of experience. From a literature search approximately 400 linkage skills were extracted. In addition, certain commonalities were evident, related to skill clusters, personal attributes, and cognitive understandings. A second strategy used to identify skills pertinent to the primary target audience was to conduct telephone interviews with a select group of 14 state facilitators and developer/demonstrators. From the interviews, approximately 200 skills were obtained. As a result of a synthesis of literature and interview findings, similar skills or duplicated skills were eliminated yielding a final listing of all skills. These skill clusters and specific skills were partitioned according to client type, stage of dissemination, and level of experience. The resultant taxonomy is displayed graphically. (Author/MLF)