Caroline Tolbert's work weaves together a concern with diversity and inequality, elections and representation, and digital media and public policy. Her research includes nearly fifty peer-reviewed journal articles and eight books, two of which are co-edited. She was named a Collegiate Scholar by the University of Iowa in 2009. She is co-author of three books on digital inequality and technology policy, including Virtual Inequality (2003), Digital Citizenship (2008) and Digital Cities (2012). The latter was ranked as one of the twenty best-selling titles in the social sciences by the American Library Association. Her research on technology policy and election reform has been supported by the National Science Foundation, the MacArthur Foundation, the Democracy Fund and others.