"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.