This article examines the current state of adoption research as it applies to each member of the adoption triad. It includes a review of the research that has focused on birth mothers and fathers in both domestic and international adoptions; adopted children, adolescents, and adults; and adoptive parents. The paper also examines the areas of research in which a paucity of studies currently exist, and suggests that although major contributions to clinical practice and policy have been made, the dialogue should continue to seek to study issues such as international adoption and the adoption of children in foster care.