For another online rulebook, the Canadian rules are found under
http://www.cfl.ca/CFLRulebook/home.html
Unfortunately not in a printable format, but the structure is basically the same as the printed book.
I know the German American Football Leauge rule book is based on the NCAA, the setup is also the same, they just make changes where needed. I think the British American Football Leauge is also NCAA with a few changes, but you can look at it at
http://www.bafra.org/index2.htm
James