An inspiration, protocol and implementation of a decentralized social network. Applications with the NoseRub protocol keep information about profile data for each of the contacts. These profiles get synchronized between the applications/social networks … and can be used by any other NoseRub service. NoseRub uses already available standards like OpenID, RSS and FOAF to provide the goal of having a truly decentralized social network. This means you build your social network in one place and have other NoseRub clients connect to it instead of you having to build multiple networks on multiple social networks. The best part is NoseRub is released under the open source MIT license.