PURPOSE : A manless real estate information system using the Internet is provided to search real estate and information related thereto in a remote place at an on-off line conveniently and to input/register real estate offerings information including data as a photograph conveniently and at low cost by using a wireless post system having functions as a scanner and a printer etc.CONSTITUTION : In a real estate information system using the Internet, an operator computer(130) supplies various information related to real estate as real estate information, geographic information, real estate auction information, law consultation information, living information, and event information. A wireless post system(100) is connected to the operator computer(130) through the Internet(120) and receives various real estate related information from the operator computer(130) and outputs the information to a monitor screen or a printer. When real estate offerings is registered, the system(100) receives photograph data of a user through a scanner and transmits the data to the operator computer(130). A user terminal(110) is connected to the operator computer(130) through the Internet(120) and receives various real estate information from the operator computer(130).? KIPO 2002