Cover Story from Next Week's Economist:
The rich and the rest
http://www.economist.com/node/17959590
Unbottled Gini
http://www.economist.com/node/17957381
The beautiful and the damned
http://www.economist.com/node/17957107
The Inequality That Matters by Tyler Cowen
http://www.the-american-interest.com/article-bd.cfm?piece=907
The Rise of the New Global Elite by Chrystia Freeland
http://www.theatlantic.com/magazine/archive/2011/01/the-rise-of-the-new-global-elite/8343/
Striking it Richer: The Evolution of Top Incomes in the United States by Emmanuel Saez
http://www.econ.berkeley.edu/~saez/saez-UStopincomes-2008.pdf
"Building a Better America—One Wealth Quintile at a Time” by Norton, Michael I., and Dan Ariely.
http://www.people.hbs.edu/mnorton/norton%20ariely%20in%20press.pdf