PROBLEM TO BE SOLVED: To unite action in ad-hoc communication brought into close contact with actual action and action by human connection in an Internet space by providing a social network technology obtained by taking contents of ad-hoc communication into consideration.;SOLUTION: This communication information distribution device 3 specifies, as an opposite communication party, a user with whom a combination of position data and time data is coincident, wherein short range radio communication transmitted from a portable terminal 2 is performed. Then, the communication information distribution device 3 acquires user information that is registered on a communication site by the user of the opposite communication party, makes the user information associated with the position data, and provides it to the portable terminal 2.;COPYRIGHT: (C)2010,JPO&INPIT
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