We've become pretty adept over the years at the corny, cheeseball pun title and we're almost proud of that. If they were giving awards for lame, but witty BJJ website post titles, we'd surely get an honorable mention or consolation prize. So, recognize, OK?
Moving on. Our friend, Matt Kirtley, has become somewhat of a legend in the underground world of online BJJ resources. He's certainly a pioneer, having started his Aesopian.com way back in 2006 (as a blue belt, I think). His site is a huge resource for sophisticated technique and, now, expert advice from a Matt, a solid black belt and coach.
Now check out this superb video primer of the lost fundamental that is standing up from the guard.