curraheeguns
Master
Wow..... I only had time to go through about half of this but it is great. Note that it is from 2001 so I am not sure what has changed since then if any thing.
http://www.cs.cmu.edu/afs/cs/usr/wbardwel/public/nfalist/nfa_faq.txt
http://www.cs.cmu.edu/afs/cs/usr/wbardwel/public/nfalist/nfa_faq.txt