Recommended reading: Martin Aedma's blog

Martin Aedma from Estonia just started blogging and I recommend anyone to bookmark his blog and check it out. He's got a solid understanding of the underlying concepts of grappling, and has helped me tremendously in my own game. He has a video on my blog about his guard passing, that I shot in the summer of 2009.

Check it out on martinaedma.bjj.ee!