Patent ID: 8862499

Claim:
An information providing device comprising: image data transmission/reception unit transmitting and receiving image data from image data processing terminals of users through a network; image data saving hardware saving the received image data; address information appending unit appending, to said image data, a destination address for referring to said image data from outside; storage medium storing user information; content information storing hardware storing advertisement content information; and content information attaching unit attaching said advertisement content information to said image data; wherein said advertisement content information, selected on the basis of said user information identifying said user, is transmitted to said image data processing terminal of said user and displayed, on said image data processing terminal of said user, with a notification indicating that the image data has been received from the user and GUI (graphical user interface) information to designate said advertisement information by said user; wherein said image data transmission/reception unit transmits said image data to said image data processing terminal of another user, wherein said image data is (a) stored at the destination address, and (b) attached with said advertisement content information designated by said user.