America's Vanishing Middle Class
by E.D. Kain
Forbes Magazine
Explores increasing income equality over the past 30 years. Makes correlations between this phenomenon and the erosion of the middle class which has occurred during the same time period.
http://www.forbes.com/sites/erikkain/2011/09/15/americas-vanishing-middle-class/
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It's the Inequality, Stupid: Eleven charts that explain what's wrong with America
by Dave Gilson and Carolyn Perot
MotherJones
http://motherjones.com/politics/2011/02/income-inequality-in-america-chart-graph
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