This study provides a content analysis of advertising research articles in nine top Web of Science research categories producing advertising research outside of the advertising, business, and communication domains in order to identify opportunities for field growth and potential collaboration as we reimagine advertising for the next 50 years. Ten content characteristics were examined in 943 articles published from 2011 through 2020: (1) advertising prominence. (2) theory presence (theory-driven versus not theory-driven), (3) names, types (theory versus theoretical framework/model versus construct), and originating disciplines of theory, (4) topic areas, (5) media of interest, (6) research approaches (empirical versus non empirical and quantitative versus qualitative versus mixed), (7) methods, (8) types of effects, (9) units of analysis, and (10) research implications. A roadmap for gleaning opportunities and navigating growth through collaboration is discussed.