An information processing system configured to include at least an open server apparatus and a terminal apparatus communicable with each other through a network is disclosed. The system includes: an opening mode setting means for setting an opening mode; a transmitted content information creating means for creating content information including at least body information and predetermined additional information; a content information storing means for storing content information; a content information upload control means for transmitting content information; and an opening mode determining means for determining an opening mode of the content information stored in the content information storing means.