Resources for Understanding Poverty
Institute for Research on Poverty
http://www.ssc.wisc.edu/irp/
The Institute for Research on Poverty (IRP) is a national, university-based center for research into the causes and consequences of poverty and social inequality in the United States. It is nonprofit and nonpartisan. Based at the University of Wisconsin, this website includes research on the extent of poverty, definitions of poverty, public assistance systems, discrimination and segregation, the elderly and people with disabilities, and educational policy. It has an excellent frequently asked questions section and also has a list of links to organizations working on poverty.

Joint Center on Poverty Research
http://www.jcpr.org/
The Northwestern University / University of Chicago Joint Center for Poverty Research supports academic research that examines what it means to be poor and live in America. JCPR concentrates on the causes and consequences of poverty in America and the effectiveness of policies aimed at reducing poverty. Their goal is to advance what is known about the economic, social and behavioral factors that cause poverty, and to establish the actual effects of interventions designed to alleviate poverty. The Center's research agenda focuses on: changing labor markets and the causes of inequality in the current labor market; family functioning and the well-being of children; the impact of concentrated urban poverty; and the effects in these domains - and others - of changing policy and new programs.

PovertyNet
http://www.worldbank.org/poverty/mission/up2.htm
The PovertyNet site is maintained by the Poverty Reduction Group, part of the Poverty Reduction and Economic Management Network at the World Bank. It provides thorough information about poverty, including statistics, international intervention programs, and new methods of measurement. It also focuses on the development of social capital. It has a large section on measuring impact.

Wealth Poor Households In the U.S.
http://www.consumerfed.org/cfa5_wealth_poor_final_report.PDF
From the Ohio State University for the Consumer Federation of America and National Credit Union Foundation. This study examines wealth poor households, which they estimate at 25% of households in comparison to low-income households, 10% of the U.S. households. It also describes the characteristics of these households.