Abstract: A system and method are provided for creating a social-networking community and enabling the social-networking community to interoperate with other social-networking communities within a network of social-networking communities. The method includes creating a core profile that links a user member's identify to plurality of social-networking communities of the network. The system enables user identity information, content, and friend information to be shared across social-networking communities of the network. The system also enables community content to be shared and tracked across social-networking communities of the network.