Research across disciplines in recent years has demonstrated a number of gains involved in community engagement and service-learning pedagogies. More recently, these pedagogies are being filtered into digital contexts as instructors begin to realize the opportunities made available by online writing venues. This presentation describes a specific pedagogical model which sought to engage composition students in two specific communities, 1) the University libraries' Special Collections (Archives), and 2) the online encyclopedia Wikipedia. Student-participants in this study performed original research within Special Collections on regional topics in order to edit and create corresponding Wikipedia articles. The presentation ultimately argues that such a pedagogical model leads to an increase in students' rhetorical knowledge and motivation levels, while at the same time promoting public awareness of library resources and contributing to public knowledge via Wikipedia.