An information processing method of the invention comprises generating first relational data representing a relation between a document and a user by referring to access logs generated in response to accesses to documents; and generating second relational data representing a relation between documents, between users and between the documents and the users by using the first relational data. By the second relational data as stated above, the relation between the users though the documents can be represented. That is, it becomes easy for a user having referred to a specific document to recognize another user referring to the same specific document.