Archiving Early America
This excellent site provides a thorough and informed exploration of the origins of the song and its multiple renditions.
Library of Congress
The Library of Congress has posted a page on “Yankee Doodle” as part of its Lyrical Legacy project. Here you can find lyrics, audio files, and a brief background to the song.
Yankee Doodle Legacy
This site, part of the E Pluribus Unum Project, takes a short look at “Yankee Doodle” and its place in American culture over the centuries.