http://datadrivendetroit.org/projects/city-council-elections-by-district/

http://trends.truliablog.com/vis/tru247/

http://mbostock.github.com/d3/ex/bullet.html

http://square.github.com/crossfilter/

http://code.shutterstock.com/rickshaw/examples/

http://mbostock.github.com/d3/talk/20111116/bar-hierarchy.html