Portable Social Networks, The Building Blocks Of A Social Web
http://www.digital-web.com/articles/portable_social_networks_building_blocks_of_a_social_web/

Ward, Ben
Digital Web Magazine
2008

Abstract:

Social networks as we know them—MySpace, Facebook, Twitter—each keep identity and personal relationships separate from one another. Every time you join a network, that information has to be duplicated, by hand, by you. It’s a familiar process, but in 2008 we have the tools to break that trend.