IMPACT II is a teacher-to-teacher networking program designed to improve teaching in New York City schools. Teachers who have been working on new ideas that need more refinement are eligible for $300 grants offered to program developers. Teachers who would like to adopt ideas previously developed by the program may receive $200 as replicator grantees. Since 1979, about 500 teachers have received grants. To facilitate exchanges among teachers, IMPACT II supports a wide range of networking activities, including newsletters, product catalogues, receptions, and teacher assistance. The autonomy of teachers is emphasized. Program outcomes were evaluated with questionnaires from 136 grantees plus a control group of 44 grant applicants. Findings indicate, among other things, that 85 percent more of IMPACT II participants improved their teaching than did the control group. Overall findings suggest that teacher participation and control increases willingness to try new ideas and that teacher networking provides the vehicle for peer learning and support. In the fall of 1980, Community School District One began a District Incentive Grants Program roughly modeled on IMPACT II. Although successful in many ways, variance from the original model caused it to have fewer long-term effects than IMPACT II. (Author/JM)