An information processing system that can create a page easily by the use of contents disclosed from information disclosing servers. A contents storing section stores contents to be provided. In this information processing system, an additional information storing section stores additional information consisting of information indicating the respective attributes of contents stored in the contents storing section and relations among the contents. An additional information obtaining section obtains additional information from an information disclosing server. An additional information storage section stores additional information obtained. An editing section edits additional information stored in the additional information storage section according to an administrator's intention or a user's taste. A display data creating section creates display data for displaying a page from additional information stored in the additional information storage section at the request of a client. A sending section sends display data created to a client which made a request. A send requesting section requests to send predetermined display data. A receiving section receives display data sent. A display outputting section outputs received display data to a display device.