Abstract: A server apparatus (10) includes: a building unit (132) configured to build a virtual shop at which a user's viewing and purchase of a product can be performed in a virtual space and provide the virtual shop for a user terminal used by each user; and an element of interest display control unit (134) configured to identify an element for which users' interests are aggregated among elements disposed in the virtual shop on the basis of operation information of each user for the virtual shop and perform control such that the identified element is displayed with being emphasized in each user terminal.

Abstract: A server device (10) includes: a construction unit (132) configured to construct a virtual shopping mall including virtual stores from which a user is able to browse and purchase products in a virtual space and to provide the constructed virtual shopping mall to a user terminal used by the user; and an optimization unit (134) configured to change at least one of virtual stores which are arranged in the virtual shopping mall, advertisements which are arranged in the virtual shopping mall, products which are arranged in the virtual stores, and advertisements which are arranged in the virtual stores for each user according to user information of users entering the virtual shopping mall.

Abstract: A server apparatus (10) includes: a building unit (132) configured to build a virtual shop at which viewing and purchase of a product can be performed by a user in a virtual space and provide the virtual shop for a user terminal used by the user; a sharing setting unit (133) configured to provide, when entry of a plurality of users having a relationship into the virtual shop is registered, a chatting environment that can be shared among the plurality of users for the user terminal used by each of the plurality of users; and a sharing unit (134) configured to perform control such that a function of the virtual space is shared among the plurality of users on the basis of a comment of a chatting.