This report presents findings of the evaluation by the New York City public school system's Office of Research, Evaluation, and Assessment of three programs (Summer E.S.L. Welcome Plus, Summer Bilingual, and Project Omega) for immigrant students. The Summer E.S.L. (English as a Second Language) Welcome Plus program operated at 19 sites in New York City, serving 1,372 ninth grade students of limited English proficiency (LEP) entering high school for the first time. The program focused on the high school experience, orienting students and providing a multicultural education component. The Summer Bilingual Program has completed its seventh year, operating at 28 sites and providing services to 4,122 students in grades 9 through 12. Most participants were native speakers of Spanish, Chinese, or Haitian. Other participants were speakers of English from the Caribbean who were making up courses they had failed during the school year or who were accelerating their studies. They received full academic credit for courses they passed. Project Omega focused on staff training and developing materials for English-Creole-speaking students, most of whom were recent immigrants. Evaluation indicates that all three programs met their instructional, materials development, and staff development objectives. Recommendations are made for improvement and the continuation of each. A table compares the three programs. (SLD)