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Today Marshall Kirkpatrick interviewed Facebook CEO Mark Zuckerberg at SXSW, with the main topic of discussion being Data Portability. Later in the day at the festival, a star studded panel discussed building portable social networks . The panel highlighted four technologies that help make identity and data more portable across social networks: hCard; XFN and FOAF; OpenID; OAuth. This post serves as an introduction to each of these technologies. hCard: Providing Your Contact Information
Online reputation company Rapleaf sent us some interesting statistics about the most prominent OpenSocial companies, along with Facebook. Rapleaf gathered data on users of MySpace, LinkedIn, Friendster, Plaxo, and Hi5 Äì five social networks on the OpenSocial platform Äì and also gathered data on Facebook users. Some highlights, followed by full details below: The greatest overlap between OpenSocial container sites exists between Myspace and Hi5, in which 43% of Hi5 users also use Myspace. Facebook users are 63% female and 36% male whereas the sites integrated with the OpenSocial platform are 61% female and 38% male. 52% of Facebook users are 18-25, whereas 40% of the users are 18-25 for the five container sites on the OpenSocial platform.