"Apache Shindig is an OpenSocial container and helps you to start hosting OpenSocial apps quickly by providing the code to render gadgets, proxy requests, and handle REST and RPC requests."
"Apache Rave a new web and social mashup engine that aggregates and serves web widgets. Rave is targeted as engine for internet and intranet portals and integrates Apache Shindig & Apache Wookie to provide OpenSocial & W3C widget support, respectively."
"Apache Wookie is a Java server application that allows you to upload and deploy widgets for your applications; widgets can not only include all the usual kinds of mini-applications, badges, and gadgets, but also fully-collaborative applications such as chats, quizzes, and games."