There are some draft specs on the activitystrea.ms site. FB seems to implement t...

		what on Aug 14, 2010 \| parent \| context \| favorite \| on: Ask HN: What can kill Facebook? There are some draft specs on the activitystrea.ms site. FB seems to implement them in Open Graph. http://activitystrea.ms/spec/1.0/ http://activitystrea.ms/schema/1.0/ http://wiki.developers.facebook.com/index.php/Using_Activity...