PROBLEM TO BE SOLVED: To provide a bulletin board system capable of improving the reliability of a remark by specifying and displaying a remark position of the remark by a speaker.;SOLUTION: When a user terminal 1 transmits a writing requirement message including remark contents to a bulletin board public server 4, a position information server 3 examines the writing requirement message, and calculates a position of the user terminal 1. The position information server 3 incorporates information showing the calculated position of the user terminal 1 as the remark position into the writing requirement message, and transfers it to the bulletin board public server 4. The bulletin board public server 4 stores the remark position and the remark contents inside the received writing requirement message into a bulletin board DB 41. When the bulletin board public server 4 receives a browsing requirement message of a bulletin board from an arbitrary user terminal 1, the bulletin board public server 4 reads the remark position and the remark contents of each the remark from the bulletin board DB 41, and responds bulletin board displaying HTML data for displaying them with them associated to each other to the requirement source user terminal 1.;COPYRIGHT: (C)2005,JPO&NCIPI
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