Somewhat related, and I know this is so quixotic that it tips over into absurdity, but I somehow managed to register the jschema.org domain in 2011, and I've been working on an extremely simple schema format for JSON docs:<p><a href="http://jschema.org/" rel="nofollow">http://jschema.org/</a><p>I've got some resources to dedicate to building some tools around this, and if anyone is interested in participating please ping me.