To provide a system for effectively using information via business card.

This managing system comprises a member database for storing identification codes of a plurality of members and information on respective members, and a web server connected to the member database. URL of the identification code and the web server are printed on a business card of the member corresponding to the identification code. The web server transmits an HTML document having an input field of the identification code in response to an access from a user through the Internet, retrieves the database using the identification code as a key in response to the transmission of the identification code from the user, takes out the information of the member corresponding to the identification code, and transmits the information to the user.