Abstract: A method of providing information, which is transmitted from selected content and/or corporation information providers having registered as members, to a user in real time is disclosed. In this method, the content and/or corporation information providers register with a main service system as information providers. The user visits the website of one of the information providers, installs a client module in a user's computer, determines whether reception of information from the information provider is allowed, and transmits and stores information about the user's computer and whether reception of information from the information provider is allowed to and in the main service system. Information is received from the content and/or corporation information providers, and stored in the main service system. Only information from information providers, from which the reception of information is allowed, is transmitted to the user's computer.