This roadmap was designed to provide guidance to the New York City Department of Education (NYCDOE) school administrators in implementing blended learning programs in their own schools. Over the 2012-13 school year, the International Association for K-12 Online Learning (iNACOL) worked with 8 NYCDOE Lab Schools, each with its own blended learning model, to create this roadmap to improve blended learning implementation. This roadmap has the following goals: (1) Provide an overview of current blended learning models; (2) Provide an understanding of iLearnNYC program and its support system; (3) Identify and define 6 elements of a successful blended learning program; (4) Identify essential questions administrators should consider; (5) Share promising practices; (6) Provide case studies; and (7) Share resources: rubrics, timelines, and continuums. The following are appended: (1) Fordham High School for the Arts Profile; (2) Francis Lewis High School Profile; (3) Robert H. Goddard High School of Communication, Arts, and Technology Profile; (4) High School of Economics and Finance (HSEF) Profile; (5) Marta Valle High School Profile; (6) Mott Hall V Profile; (7) Olympus Academy Profile; (8) Seth Low Profile; (9) iLearnNYC: Blended Learning Quality Review Rubric; (10) Continuum from Textbook Enhanced to Online Teaching and Learning; and (11) iLearnNYC Observation Form. [iLearnNYC is an initiative of iZone, which was established by the New York City Department of Education.]