1. A method for forming a social network of users, said method comprising: identifying, by a server, multiple invitations to a new user to join the social network, the multiple invitations originating from multiple inviting users; assigning the new user a temporary identity prior to the new user joining the social network; distributing the temporary identity of the new user to the multiple inviting users; and notifying the multiple inviting users in response to the new user joining the social network.