1. A computer-implemented method for identifying information to be added to an author profile for an author, the author profile identifying documents classified as being authored by the author, and the method comprising: clustering a plurality of first documents into one or more first document groups, wherein each of the one or more first document groups is associated with a respective author proper name; after clustering the plurality of first documents into the one or more first document groups: receiving author information from an author; generating a query that specifies a particular name of the author and one or more items of the author information received from the author; generating a result list of one or more documents that satisfy the query, the documents being ranked according to a document rank; ranking the one or more first document groups based on how many documents in the result list are included in each of the one or more first document groups, the ranking favoring first document groups having more documents from the result list over first document groups having fewer documents from the result list; and providing data describing the one or more first document groups in an order according to the ranking for selection by the author for inclusion in an author profile for the author that identifies documents classified as being authored by the author.