1. A method in a computer system for identifying authors that have a relationship, the method comprising: providing documents, each document having one or more authors; identifying author clusters of authors based on co-author relationships between the authors wherein authors have a co-author relationship when the authors co-author a document, the authors within the same author cluster having a relationship; for each author cluster, identifying document clusters of documents from the documents that the authors of the author cluster authored; and upon receiving a request to provide information on a selected author, selecting an author cluster that includes the selected author, displaying an indication of authors that are in the selected author; and displaying an indication of the document clusters identified for the selected author cluster.