What is the name of the book written by a muslim traveler visiting
Colorado in the early part of the 20th century that critiqued American
culture and served as an inspiration for Osama bin Laden?

Hello diabolicalmdog,

The book is certainly by Sayyid Qutb; the question is which book.  He
wrote a specfic critique in "The America I Have Seen", but that is not
his most influential book.  More often cited are "Milestones" and the
longer work from which it was derived, "In The Shade Of The Qur'an". 
In any event, Qutb was affected by his experiences in Greeley,
Colorado, where he studied in the late 1940s at Colorado State
Teachers College.  In turn, his views were a major inspiration for
Osama bin Laden.

"Sayyid Qutb's America" (May 6, 2003)
National Public Radio
http://www.npr.org/display_pages/features/feature_1253796.html

"The Philosopher of Islamic Terror, by Paul Berman (The New York
Times, March 23, 2003)
Margaret Leeming [Vassar College]
http://faculty.vassar.edu/maleeming/Files/QutbNYT.html

"Is this the man who inspired Bin Laden?", by Robert Irwin (The
Guardian, November 1, 2001)
Guardian Unlimited
http://www.guardian.co.uk/g2/story/0,3604,584478,00.html

"This man may become our nemesis", by Malise Ruthven (The Guardian,
October 10, 2001)
Guardian Unlimited
http://www.guardian.co.uk/waronterror/story/0,1361,566745,00.html

- justaskscott


Search terms used, in various combinations, on Google:

"bin laden"
colorado
qutb
milestones
greeley
site:guardian.co.uk