FOAF had tagging for people in photos back in 2000 or thereabouts. I remember demos which even outlined shapes within photos. Facebook deserves credit for maki

FOAF had tagging for people in photos back in 2000 or thereabouts. I remember demos which even outlined shapes within photos. Facebook deserves credit for making it possible to do it all within one big system, rather than rely on a patchwork of URLs. But not for a patent on the idea.