1. Introduction -- 2. The information sector version of the information society thesis -- 3. The information flows version of the information society thesis -- 4. The information technology version of the information society thesis -- 5. Synthetic methodology of the information society thesis -- 6. Overall conclusions -- Coda: An agenda for Information Society Studies -- App. 1. Database searches -- App. 2. Telephone interview with Youichi Ito -- App. 3. Periodicals carrying articles on the information society between 1984 and 1997