Abstract: A server device includes: an interest information formation unit for forming interest information which is a vector obtained by digitizing a plurality of adjectives expressing a user, item information, and shop information; a distance calculator for calculating a first distance between the interest information for the user and the interest information on the item information, and a second distance between the interest information for the user and the interest information on the shop information; a recommendation information determination unit for determining that if the first distance and the second distance meet prescribed conditions, the item information corresponding to the first distance and the shop information corresponding to the second distance are recommendation information to be recommended to the user; and a recommendation information provision unit for providing a client device with the recommendation information.