Randy Wakeman who authored many of the articles on shotguns for that site is a wealth of knowledge... a bit egotistical... but if you are going to be an outdoor writer... you have to either be an ego maniac, make fun of yourself a lot, or just never include yourself in your stories (which doesn't make for very good reading if you ask me).

I have generally found the website as a whole to be a good source of information of a broad array of topics. They tend to cover from the basic to the fairly advanced.