Due to advances in internet technology, it is now possible for a user of an internet-connected device to obtain great amounts of information. The fact that the amount of information is so great, however, makes it difficult to notify the user of desired information at a desired time.
Patent Literature 1 discloses an information notification device which stores a viewing history associating (i) a user's location and elapsed time since arrive at the location with (ii) whether or not the user has viewed information. The information notification device refers to the viewing history and notifies the user of information at a point in time at which the user is highly likely to view the information. Patent Literatures 2 through 4 each disclose techniques relating to the timing with which a user is notified of information.