Book excerpt: Virtual exchanges provide language learners with a unique opportunity to develop their target language skills, support inter-cultural exchange, and afford teacher candidates space to hone their teaching craft. The research presented in this volume investigates the role of virtual exchanges as both a teaching tool to support second language acquisition and a space for second language development. Practitioners obtain guidance on the different types of exchanges that currently exist and on the outcome of those exchanges so that they can make informed decisions on whether to include this type of program in their language teaching and learning classrooms. To this end, this edited volume contains chapters that describe individual virtual exchanges along with results of research done on each exchange to show how the exchange supported specific second language teaching and learning goals.