1. A server in a system providing information to a user terminal being able to display a map comprising: a database for holding a specific information document having index information composed of a plurality of elements out of information documents having attribute information representing attributes of service information to be provided as bubble data in which spatial range information in the three-dimensional space is associated with retrieval information for obtaining said service information; a retrieving unit for retrieving specific bubble data including coordinate information and display object attribute information in said bubble data on the basis of a mapping request, transmitted from said user terminal, having said coordinate information on an object displayed on said map and said display object attribute information representing attributes of service information to be provided by said object; and a notifying unit for notifying said user terminal of a mapping response having said spatial range information, said attribute information and said retrieval information included in said specific bubble data.