The four authors of this article have each at different times over a ten-year period helped develop versions of the Online Writing Partnership between future English teachers learning to teach writing and high school students learning to write better. The authors have been striving to help future English teachers learn how to help high school students stretch their capacities for written expression, and in doing so, they have been struck by how much these partnerships have also helped classroom teachers provide the individual attention that all developing writers need. The most exciting component of the Online Writing Partnership has been the opportunity to learn over time about writing instruction and development, to understand the processes and participants more deeply. In this article, the four authors, high school and college teachers all, describe the evolution of their successful, innovative Online Writing Partnership program in which graduate-level preservice English teachers serve as writing consultants for high school English students.