1. An information re-organization system comprising: a plurality of counters coordinated to meaning attributes; a re-organization incentive notification unit that updates, in case the information stored in a preset storage means has been updated, value of a counter out of said multiple counters that has the meaning attribute coordinated to contents updated; and an information re-organization processor that executes, in case the value of said counter or a combination of two or more values of said counter has met one or more of a number of predetermined conditions for information re-organization, a processing for information re-organization coordinated to said condition for information re-organization on the information stored in said preset storage means, wherein at least one of the plurality of counters, the re-organization incentive notification unit and the information re-organization processor is a hardware component, and wherein the information re-organization system further comprising: measuring unit that measures an estimated time needed in said information re-organization processing, wherein said number of predetermined conditions for information re-organization being changed based on the difference between the estimated time of preset information re-organization processing and the time actually taken in said information re-organization processing.