Tài liệu tham khảo WikiPedia: OpenSocial http://code.google.com/apis/opensocial/ http://www.google.com/intl/en/press/pressrel/myspa... http://www.google.com/intl/en/press/pressrel/opens... http://en.netlog.com/go/developer/opensocial http://www.nytimes.com/2007/11/02/technology/02goo... http://blog.sonico.com/boletin/opensocial-week-exi... http://opensocialdirectory.videgro.net http://www.opensocial.org http://en.wikipedia.org/wiki/Hi5_(Website)
