Bokononism
http://bernd.wechner.info/Bokononism/
This website identifies all of the text from Cat's Cradle that refers to Bokononism (including the Books of Bokonon).
Hiroshima City
http://www.city.hiroshima.jp/e/index-E.html
Official Hiroshima City webpage, with an analysis of the conflicts leading to the use of the atomic bomb, a discussion of the effects of the atomic bomb, and a portrayal of the city as it exists today.
Vonnegut.com
The official website of Kurt Vonnegut.
Kurt Vonnegut
http://www.kirjasto.sci.fi/vonnegut.htm
Another summary of Kurt Vonnegut's life and a list of his major works.
Dystopia
http://hem.passagen.se/replikant/
An examination of the concept of dystopia and its appearance in other literature.