KeyLines (http://keylines.com/ http://keylines.com/) is in the same space, it's a framework for building network graph visualisations, not just those economic b

KeyLines (http://keylines.com/ http://keylines.com/) is in the same space, it's a framework for building network graph visualisations, not just those economic breakdown charts. It's got a great API and team behind it - they're based in Cambridge, UK. It's built on HTML5 Canvas, and has fallbacks using Flash, etc. for older browsers.