This book looks at the evolution of 16 school-to-work transition projects initiated through the Exemplary In-School Grant Program of Youthwork, Inc., funded under the Comprehensive Employment and Training Act (CETA). The study addresses issues raised by the Youth Employment and Demonstration Projects Act of 1977, which sought to produce changes that would: 1) provide more comprehensive and higher quality services; and 2) establish linkages, patterns of collaboration, and incentives for cooperation between education and employment/training sectors and between education agencies and prime sponsors. The linkages made between individual projects and other organizations and agencies are identified, and their ability to enhance services for young people is assessed. The report describes the research plan of the study, which was based on the ethnographic approach. The projects are classified in four substantive categories: 1) Academic Credit for Work Experience; 2) Expanded Private Sector Involvement; 3) Career Awareness; and 4) Job Creation Through Youth Operated Projects. Within those areas, the report describes the projects in terms of program characteristics, the specific linkages created during project implementation, and aspects of program operations. The report discusses individual programs of particular interest as case studies. Findings of the study across all four approaches are summarized. (Author/MJL)