To enhance reliability and convenience when collecting information required by a user for receiving a mail magazine to process it, or the like.

An information processing system, for processing unit data including a plurality of information elements divided by predetermined dividing patterns, is provided with an information element dividing means which divides the unit data into the plurality of information elements depending on the dividing patterns; an information element sorting means which is supplied with a sorting condition, and sorts out, among from the plurality of information elements acquired by dividing the unit data, an information element matching with the sorting condition; and an information element providing means which provides the information element sorted out with the information element sorting means to the user. In addition, the information element dividing means preferably has a structuring part which collates each part of the inside of the information element to be provided to the user with a predetermined typical and conceptual structure that has been previously set for the information element, analyzes the part, and adds a logical structure to the information element according to the analysis result.