Information sharing system, information sharing method and terminal device

An information sharing method in which, on a computer network formed of terminals of users and a server, information about a posted message posted by a user is shared among a plurality of users, the method comprising:

• question message information acquisition step of acquiring a question message input via the terminal together with positional information associated with the question message;
• question message accessing step of causing the question message acquired in the question message information acquisition step to be accessible to the users on the computer network;
• answer message information acquisition step of acquiring an answer message input via the terminal as an answer to the question message;
• answer message accessing step of causing the answer message acquired in the answer message information acquisition step to be accessible to the users on the computer network;
• respondent positional information acquisition step of acquiring positional information of a respondent that is the user who inputs the answer message;
• and
• access restriction step of restricting the respondent from accessing the question message on the basis of question positional information that is the positional information associated with the question message and respondent positional information that is the positional information of the respondent, acquired in the respondent positional information acquisition step.

A non-transitory computer-readable storage medium storing computer-executable program for sharing information about a posted message posted by a user among a plurality of users, the program comprising:

• instructions for acquiring a question message input via an operating unit together with positional information associated with the question message;
• instructions for causing the acquired question message to be accessible to the users on the computer network;
• instructions for acquiring an answer message input via the operating unit as an answer to the question message;
• instructions for causing the acquired answer message to be accessible to the users on the computer network;
• instructions for acquiring positional information of a respondent that is the user who inputs the answer message;
• and
• instructions for restricting the respondent from accessing the question message on the basis of question positional information that is the positional information associated with the question message and respondent positional information that is the acquired positional information of the respondent.