To provide an advertisement information further useful to a member in a chat system for offering a chat room in which a member can participate.
This system is provided with a message table 15, an advertisement transmission reference table 17 including a keyword, an advertisement table 16 for storing advertisement information, and a control part 11. The message table 15 stores the message of the member in the chat room. The control part 11 reads and displays the message contents from the message table 15 in a chat room designated by the member. When a keyword in the advertisement transmission reference table 17 is present in the message contents of the member read and displayed from the message table 15, the control part 11 reads advertisement information corresponding to the keyword or the message contents from the advertisement table 16, and offers it to the member who left the message.
TSUBOMOTO TOSHINORI
URATSUME MASAAKI
TOIDA KATSUHIKO
Next Patent: PERIODICALS WITH CODE IMAGE AND INFORMATION RESOURCE