Economic Policy Institute - Minimum Wage Tracker and more resources from this non-profit, non-partisan think tank.
House Committee on the Budget - Health and Wealth Inequality in America from the House Committee on the Budget.
Inequality.org - A Leading portal to data, analysis, and commentary on income and wealth inequality.
Institute for Policy Studies - IPS is an independent, "progressive think tank dedicated to building a more equitable, ecologically sustainable, and peaceful society."
National Women's Law Center - Fact sheets and more resources about women's wage gap.
OXFAM - Oxfam maintains webpages on The Politics of Poverty - Ideas and analysis from Oxfam America's policy experts.
United States Census Bureau - Household net worth, or wealth, is an important part of economic well-being in the United States. On this page, you will find wealth statistics for various demographic and socioeconomic groups. Here is a link to a separate page for Economic Statistics.
Also, more information here on the Census Bureau page for Income Inequality.
U.S. Department of Labor - Bureau of Labor Statistics provides access to a repository of employment statistics as well as consumer and producer price indexes.
Who Rules America? - This website, written by G. William Domhoff, author of the book by the same name and currently professor at UC Santa Cruz, provides details on the wealth and income distribution in America and how they relate to power. Updated with an extensive list of sources and further reading suggestions.