For some insights into the history construction of different cultures, see the following excellent web sites:
African American History at the Smithsonian http://www.si.edu/resource/faq/nmah/afroam.htm
African American Mosaic at the Library of Congress http://lcweb.loc.gov/exhibits/african/intro.html
African American history database www.watson.org/~lisa/blackhistory/
Native American history and culture-First Nations http://library.lhs.usd497.org/nativeam.htm
Native American history archive
http://www.hartford-hwp.com/archives/41/index-a.html
Asian American history and culture - Ancestors in the Americas http://www.cetel.org/
Japanese American Legacy Project www.densho.org
The Hispanic or Latino "umbrella" http://www.azteca.net/aztec/chicano.html
Arab-American history and culture http://www.aaci-us.org/arabamerculture.html
"The Yellow Pages" of American ethnic history and culture
http://xroads.virginia.edu/~YP/ethnic.html
Ethnicity and Race (American ethnicities) http://anthro.palomar.edu/ethnicity/Default.htm