US Census Bureau
U.s. Bureau of the Census: Hispanic Population of the United States
This web-page from the U.S. Bureau of the Census looks at the hispanic population of the United States via census data and other facts.
US Census Bureau
United States Census Bureau: Current Population Survey
The Current Population Survey (CPS) is a monthly survey of about 50,000 households conducted by the Bureau of the Census for the Bureau of Labor Statistics. The survey has been conducted for more than 50 years. The CPS is the primary...
US Census Bureau
U.s. Census Bureau: Race: Black Population
Links to census data on the black population in the United States.
US Census Bureau
U.s. Census Bureau: Factfinder for the Nation [Pdf]
The U.S. Census Bureau offers detailed information on the history of census taking in the U.S., what questions are asked, how data is gathered, and how it is used.
Other
Mla: Language Map
An interesting, interactive way to view the many languages spoken in the United States. This site is filled with data, interpretation of data, interactive maps, ways to use the data, and ways to compare languages spoken in states.