Online teacherpreneurship occurs via popular online educational marketplaces, such as Teacherspayteachers.com (TpT), whereby teachers purchase, sell, and exchange curricular materials created by fellow educators and designed for classroom use. Among the potential benefits of the practice is the ability to offer a teacher-centered and teacher-led approach to curriculum, facilitate collaboration, and provide an opportunity for teachers' financial gain. However, several concerns exist, including resource quality, "power sellers" who may dominate the marketplace, and issues with platforms that extract teacher labor and funds as part of their for-profit model. Given these challenges and opportunities, we provide a vision for new approaches to teacher education that critically explore the growing practices around such platforms. Teacher education should address online teacherpreneurship and online educational marketplaces by preparing teacher candidates to be critical consumers, careful creators, and discerning professionals.