Links:

The People

Settlement and Immigration

http://www.gallup.com
http://www.census.gov/main/www/cprs.html
DHS, US Citizenship and Immigration Services: http://uscis.gov/graphics/index.htm
http://www.census.gov/Press-Release/www/2001/cb01-04.html
http://factfinder.census.gov/home/saff/main.html?_lang=en
http://washingtonpost.com/ (archives, search and special reports)

Women and Minorities

http://usinfo.state.gov/usa/
http://www.lib.msu.edu/foxre/currpop.html
http://www.gallup.com/

Special reports, The 2000 Census (2001)
http://www.washingtonpost.com

“The Foreign-Born Population of the United States, March 2000, Population Characteristics" (2001); “Overview of Race and Hispanic Origin, Census 2000 Brief” (2001); “Mapping Census 2000: The Geography of U.S. Diversity” (2001)
http://www.census.gov

Current population surveys
http://www.census.gov/cps