Tim O'Brien's Web Site
http://www.illyria.com/tobsites.html
The author's official Web Site.
"Vietnam recollections relive the war's surreal horror"
http://tech.mit.edu/V110/N22/thing.22a.html
A review of the book.
The Vietnam War
http://www.digitalhistory.uh.edu/modules/vietnam/index.cfm
A brief historical overview of the Vietnam War, with links.