The Washington and Lee University Library offers several approaches to finding information from important public interest and research groups.
Vanderbilt University maintains a collection of resources on welfare and poverty, including research centers, government sites, and interest groups.
The National Governors Association maintains a "list of organizations, individuals and reports that states can use as resources when developing policies to reduce poverty and promote family economic opportunity." (A description of this resource is here.)
The American Library Association's Hunger, Homelessness, and Poverty Task Force provides this collection of resources, which includes policy groups, research guides, statistical sources, and much more -- even Barbara Ehrenreich's blog.
Leyburn Library subscribes to the online Associations Unlimited, which provides information on over 400,000 associations and professional organizations, including groups concered with poverty-related issues. The subject searching options allow you to generate