Andrea B. Hollingshead is Professor of Communication in the Annenberg School of Communication. She has joint appointments in the Marshall School of Business and the Department of Psychology at USC.  She is also Co-Director of the Annenberg Program on Online Communities (APOC) Research Initiative.

Professor Hollingshead joined Annenberg in 2005 after serving on the faculty at the University of Illinois at Urbana-Champaign for 12 years, where she was an award winning teacher and researcher. She holds a B.A. in Psychology from Yale University and an M.A. and Ph.D. in Social Psychology from the University of Illinois. Prior to graduate school, Professor Hollingshead worked in marketing research and advertising. 
 
Professor Hollingshead's research concerns knowledge networks in work groups: how people in groups learn, store, retrieve, communicate, and use knowledge from others inside and outside the group. She seeks to identify the factors and processes that lead to effective and ineffective knowledge sharing in groups.  Her work also addresses how groups collaborate, and create community using communication technologies.  She has had extensive support from the National Science Foundation for her research. Her publications include two books, Theories of Small Groups: Interdisciplinary Perspectives (2005, co-edited with Marshall Scott Poole), which won the Ernest Bormann Research Award for Best Book or Monograph from the National Communication Association, and Groups Interacting with Technology (1994, with Joseph E. McGrath). Her articles have appeared in top-tier journals in the fields of communication, psychology, and management. She is a sought after speaker, and has given more than 50 invited presentations about her research at major universities around the world.