TexasCHLforum.com

Try searching the "Advanced Training" or other subforums here; occasionally there are discussions on non-firearm training, including empty hand stuff.

Also consider some of Geoff Thompson's books.

Here is a question to consider: what non-weapon skills should a citizen (whether armed or not) possess or develop to protect him/herself from criminal aggression? This may seem very broad or vague, but I think it is a valid question and can help determine what is worth spending time upon and what can be safely ignored.