A spatial bulletin board system for virtually writing a memo in an actual space and displaying the memo superimposed on a picked-up image of the actual space. The system includes an input device that converts drawing movement during the creation of content in an actual space to three-dimensional coordinate information and acquires positional information which specifies a place in which the memo is written and saves the information in a spatial communication server. In the image-pickup place, the picked-up image is displayed on a spatial bulletin board display device and a browsing request is sent to the spatial communication server.