A data-providing service system of the present invention provides a user with data of an apparatus having a navigation function which outputs current position information. The data-providing service system provides a content provider such as restaurant, amusement, tourism guidance, hotel, music service and the like with content information, receives the content information, provides the user with information requesting membership registration, receives personal information from the user and provides the user with the content information. The content information includes link information for linking with personal information, and link information for linking primary judging information such as time information, climate information, environment information other than position information, or for linking with secondary judging information concerning the user such as personal identification information, hobby/taste information, using state/frequency information and the like. When current position information is outputted by the navigation function, the linked content information is outputted in accordance with the primary judging information or the secondary judging information.

 
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