Founded in 1968, the Urban Institute's "staff investigates the
social and economic problems confronting the nation and government
policies and public and private programs designed to alleviate
them." Just about every facet of the Institute's work can be found
here. One is "Hot Topics," where they list their research by some 20
different areas. The also provide extensive information on their
"Research Centers:" "Education Policy," "Health Policy," "Human
Resources Policy," "Income and Benefits Policy," "International
Activities," "Nonprofits and Philanthropy," "National Center for
Charitable Statistics," "Population Studies," "Metropolitan Housing
and Communities Policy Center," and "State Policy." One of their
major new project is "Assessing the New Federalism," which studies
the shift of responsibility to the states. Their periodicals are
available here as well; they include "Policy and Research Report,"
"Update and Policy Bites;" various policy briefs are here too.
Finally, you can search their print publications database.