Amerigo Vespucci
A biographical article from the Catholic Encyclopedia.
Amerigo Vespucci
A biographical essay by Jeff Butch, with references.
Amerigo Vespucci
About.com's geography story of the man for whom America is named.
Letter of Amerigo Vespucci
An account of his 1497 voyage, from the Modern History Sourcebook.
MSN Learning & Research: Vespucci, Amerigo
A short biography from the Encarta Encyclopedia.
Why was America named after Amerigo Vespucci?
An informative column from The Straight Dope.