callback({ "resource_url": "http://wedata.net/items/28883", "data": { "source": "mz4" }, "database_resource_url": "http://wedata.net/databases/TwitterSources", "created_by": "drry", "name": "MZ4", "created_at": "2009-05-14T11:18:08+09:00", "updated_at": "2009-05-14T11:18:08+09:00" })