The growing concern for ethics in applied linguistics may be attributed to attempts to stem the rising incidence of ethical lapses in order to ensure that the core ethical principles of: (1) respect for persons; (2) yielding optimal benefits while minimizing harm; and (3) justice are preserved. Following a brief historical review of this topic, and building on the growing commitment to carry out ethical applied linguistic research, we map out seven research tasks that will enhance our understanding of how to extend this expanding research agenda. By inviting applied linguists to evaluate their methodological practices and those of their peers, we also argue for the need to develop the ethical dispositions of emerging applied linguists, with a view to create a more robust field.