 The OpenTeach Professional Development for Open Online Educators project aims to generate new knowledge about effective online teaching practices and to harness this new knowledge to support the professional learning of online educators and to more effectively support online student learning experiences. An important gap exists in the provision of CPD for part-time and online teachers as they rarely have the opportunity to avail of campus-based resources and they may consequently have limited access to professional development. Although online learning is the fastest growing area of education worldwide, teaching online is very different. It requires different pedagogical approaches to traditional lecturing. Therefore, institutions need to support teachers transitioning into online teaching to ensure quality. Effective online teaching supports student engagement and success. This is key as online students are more vulnerable to attrition. The OpenTeach project is based in the Open Education Unit, part of the National Institute for Digital Learning at Dublin City University. The project is funded by the Irish National Forum for the enhancement of teaching and learning in higher education.