The principal investigator of this study is Dr. Kevin Leander. Dr. Leander's research interests include the study of classroom interaction, changes in teen literacy practices through new technologies, and writing. Further information about Dr. Leander and his research is available at www.vanderbilt.edu/litspace. Dr. Leander may be contacted at kevin.leander@vanderbilt.edu. Other researchers working on the project include Beth Aplin-Rollins, and Amanda Gildark.