Somehow I got on his mailing list a while back and gave him a fair shot since I encourage everyone in the industry to do whatever would be good for the industry as a whole.
While he did send some good information, he is pretty verbose. He takes ten sentences to say what could be said in one or two. Plus, his information is pretty common sense.
That criticism off to the side, I always encourage industry people to glom on to whatever they can and maybe find a good idea or two. I think that if you can get on a bicycle industry mailing list you will get some fantastic basic business information and promotion ideas.
One of the best print magazines for dive industry people is put out by Dive Training. I think it is quarterly but has some great information as well.
Good luck in your new endeavor!