The invention provides link information between various application information. One method according to the invention creates a first type of information to be provided through a first information service, creates link information specifying a second type of information associated with the first type of information within a second information service different from the first information service, creates a transfer message of the first information service including the first type of information and the link information, and provides the transfer message for a terminal. The user can then easily check associated information of the second information service if needed while he or she is using the first information service.