On the TED Fellows blog, Senior Fellow Jon Gosier writes:
Tuesday morning at TED, Steve Bratt of the World Wide Web Foundation gave a great talk about building an index to measure how humanity uses the web. Not just to measure scale but interaction and user behavior. While he’s working on that, metaLayer decided to tackle something slightly less ambitious: an index measuring how people react to TED2012.
And check out TEDGlobe.com (works best in Chrome).