PURPOSE : An information sharing system for the digital images using the Internet is provided to make a user search and share the information of a real estate if the other user uploads the image of the real estate for a specific location through the Internet.CONSTITUTION : The information sharing system comprises the plural PCs(Personal Computer)(1-3) operated by each member store such as a realty intermediating store, a travel agency and a photo shop, the Internet(3) enabling the PC to share and search the image information for the real estate and a travel site, a master server(5) servicing the registration and transaction of the real estate and controlling the image registration by the member, a DB(Database) server(10) controlling to store and provide the data in a member DB(6), a real estate image information DB(7), a travel site image information DB(8) and a photo image information DB(9) by connecting to a web server(4), and a payment approval system(11) to approve the user to use the image information by connecting to the master server.? KIPO 2002