The present invention relates to a method for allowing a user to access the Internet. A user sends an Internet access request through a first Organization's gateway and supplies to the latter some credentials for his/her authentication with a second Organization. The credentials provided contain at least one piece of information about the second Organization. The first Organization contacts the second Organization for the purpose of authenticating the user and granting him/her access to the Internet. The second Organization then gives the user the authorization to access the Internet. According to the invention, upon the access request the gateway redirects the user to a web page of the second Organization, where the user supplies to the second Organization, through the web page, further authentication credentials required for his/her identification.