Max Frisch
http://www.kirjasto.sci.fi/frisch.htm
This biography focuses on Frisch's travels, literary influences, and works. It provides information on many of Frisch's works, a bibliography, and a fairly comprehensive list of publications.
Max Frisch
http://www.litencyc.com/php/speople.php?rec=true&UID=1641
This article in The Literary Encyclopedia provides a detailed biography of Frisch, focusing on his family and other relationships. It also includes some general information about his plays and novels. Membership is required to view the full article, but one can access the site through most libraries. since so many online sites and articles about Frisch are in German, this article is quite useful.
American Cultural History
http://kclibrary.nhmccd.edu/decade50.html
This site provides useful information about America during the 1950s.
Swissworld
http://www.swissworld.org/eng/swissworld.html?siteSect=809&sid=4103352&rubricId=16090
This site, while somewhat dense, provides useful information about Switzerland in the 20th century. The most immediately relevant entries include "Switzerland and the rise of Fascism," "The treatment of refugees during the Second World War," and "The Swiss economy during the Second World War."
UNESCO
Though it now is clearly a different organization than it was in the 1950s, this background on UNESCO provides insight into Walter's character and the book as a whole.
Maxwell's Demon
http://www.auburn.edu/~smith01/notes/maxdem.htm
For those interested in exploring the technological imagery of entropy in the novel, this website provides a comprehensive explanation of the thought experiment known as Maxwell's demon.
