HUD User Policy Development and Research Information Service

"HUD USER is the primary source for federal government reports and information on housing policy and programs, building technology, economic development, urban planning, and other housing-related topics. HUD USER also creates and distributes a wide variety of useful information products and services." Most publications available on this site are downloadable free of charge, or can be ordered in printed form for a small charge. The site also includes a database of more than 10,000 full-abstract citations on housing related topics.