Teacher candidates have few opportunities during their teacher preparation coursework to investigate practices associated with eliciting and responding to student writing. This article describes an attempt to address this problem with a searchable online digital archive of student writing, with and without teachers’ written feedback, as well as other instructional materials from elementary, middle, and secondary classrooms in diverse linguistic/geographic regions of the country. The archive also includes interviews with teachers about their approaches to teaching writing, especially the principles and practices that inform their responses to student work. The design of the archive is described, along with three broad paths through the archive, which were created by the author. These paths provide opportunities for instructors of English teaching methods courses, writing pedagogies courses, and linguistics courses to investigate with teacher candidates issues that are commonly addressed in those three types of courses, like modeling writing, machine scoring, and responding with sensitivity to writers who are English language learners.