First off--a public service announcement from Master Ken.
Wim Demeere has a really fascinating clip of an interview from Dennis Tueller on the "21 foot 'rule'".
Seth Godin wants to write about nine different things. Some of them apply to physical training and self-defense. Some don't. You decide which is which.
I don't know who Andrew Robb is, but he's got some good ideas.
The MMA Warrior interviews Tony Blauer.
And Black Belt Magazine has some free info from Tony Blauer as well.