Disclosed are a method and system for establishing a session, via the Internet, between a user and an application. The method comprises the steps of providing a plurality of instances of the application, each of the instances having a respective Internet address; and the user accessing one of said instances, via the Internet, by means of the Internet address of said one instance. That accessed one instance selects one of the instances, according to a defined procedure, for a session with the user, and sends to the user an identifier, such as an URL, for accessing said selected one instance. The user accesses the selected one instance, via the Internet, by using said identifier.