Best Free Reference Web Sites

The Machine-Assisted Reference Section of the American Library Association has released their 2004 picks for the Best Free Reference Web Sites. Of particular interest may be:

Pew Internet & American Life
According to its mission statement, the Pew Internet & American Life Project makes available “original, academic-quality research that explores the impact of the Internet on children, families, communities, the work place, schools, health care and civic/political life.”
ThomasRegister
Thomas Register, a searchable database of North American manufacturing companies and products, contains entries for more than 173,000 U.S. and Canadian companies, over 152,000 brand names, as well as links to over 8,000 online supplier catalogs and Web sites.
University of Michigan Documents Center
The Documents Center is one of the best gateways for government information on the web today.
U.S. Copyright Office
This site provides one-stop shopping for copyright information complete with all the forms and processing instructions for obtaining copyright protection.