PURPOSE : A method for acquiring movable estate and real estate between multiple users through the wire/wireless Internet is provided to minimize risk, and to realize distributed investment by jointly buying an object with the money gathered from a plurality of Internet users.CONSTITUTION : The user obtains a membership by providing the personal information and agreeing to a stipulation of a company. An operator notices the object having an investable value as a cooperative buying item to the members through the Internet, an e-mail and a cellular phone. The user joins in the cooperative buying of the noticed object within a share investment ratio through the Internet and remits the invest amount to an operator' s account. The operator registers the object as common ownership.? KIPO 2003