In this study, the authors examine attitudes of researchers toward open access (OA) scholarly journals. Using two-step cluster analysis to explore survey data from faculty, graduate students, and postdoctoral researchers at large North American research institutions, two different cluster types emerge: Those with a positive attitude toward OA and a desire to reach the nonscholarly audience groups who would most benefit from OA ("pro-OA"), and those with a more negative, skeptical attitude and less interest in reaching nonscholarly readers ("non-OA"). The article explores these cluster identities in terms of position type, subject discipline, and productivity, as well as implications for policy and practice.