Abstract
Picking up dinosaurs as an example of extinct species, what and how the traditional database producers should do is discussed. Effect of Internet and Intranet on chemical information, particularly on patent information, the use of Markush files and document delivery systems are discussed. It is recommended to establish cooperation among such relevant parties as patent offices, primary information suppliers, database producers etc. Importance of changing the management policy of database producers is emphasized to make themselves survive in the rapidly changing environment.