PROBLEM TO BE SOLVED : To notify only a user satisfying a fixed condition of the existence of an associated real estate company.SOLUTION : This information providing system 70 provides a plurality of users with useful information related to a real estate. The system 70 stores the access record of a user as an access log table TB2 in a log database 34. A log analysis system 40 analyzes the table TB2 and notifies only the user satisfying the fixed condition of the existence of the real estate company associated with this financial institution.