This paper explores the research trends of the Technology Acceptance Model (TAM) using Author co-citation analysis (ACA) methods, from January 2005 to June 2010.Through the ISI Web of Knowledge (WoK) 38 key authors were selected: a Factor Analysis was performed and different techniques of information visualization, such as Multidimensional Scaling (MDS) and Pathfi nder Network (PFNET), were applied.The goal of this article is to identify the most popular research topics of TAM over the fi ve years studied.The results obtained reveal two new research themes, as well as the existence of three constructs highlighted by researchers of TAM.The results are discussed.