OpenSocial Specification 1.0 opensocial-and-gadgets-spec@googlegroups.com General OpenSocial social networking REST XML Extensible Markup Language JSON JavaScript Object Notation Atom The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC2119. Domain name examples us