KERA - PBS.ORG: U.S. Mexican War 1846-1848 http://www.pbs.org/kera/usmexicanwar/index_flash.html
Library of Congress: A Guide to the Mexican War http://www.loc.gov/rr/program/bib/mexicanwar/#top
Library of Congress: An American Time Capsule http://memory.loc.gov/ammem/rbpehtml/
Northern Illinois University: The Mexican-American War http://dig.lib.niu.edu/mexicanwar/index.html