He has an interest in social informatics and studies the use of information and communication technologies in electronic commerce, community networking, digital libraries, and egovernment. Recently, Dr. Rosenbaum has published a book entitled "Information Technologies in Human Contexts: Learning from Organizational and Social Informatics" with Steve Sawyer and the late Rob Kling and others. He has led seminars on Electronic Commerce at Napier University Business School in Edinburgh, Scotland, the University of Bath, and the University of Greenwich, in the UK. Rosenbaum teaches classes on electronic commerce, information architecture for the web, intellectual freedom, and information organizations, and offers continuing education workshops for information professionals in XML, CSS, and web page design.