http://www.ubuntupocketguide.com/ is the main page for the Ubuntu Pocket
Guide by Keir Thomas.  It appears to me that this guide is most useful to
people just getting started with ubuntu.  Although you can buy a copy for
around $10, you can also freely download the complete book as a .pdf from
the page mentioned above.  I think this would be a good URL to mention to
new users at the installfests.

-- 
Dazed_75 a.k.a. Larry