I met Mark over 10 years ago when he was in the early stages of his marketing career, and I can honestly say I have learned more from him than I could ever put a price on.
From websites and software development to getting clients, building membership sites, and creating communities, he has shown me the ropes in so many areas over the years.
If you ever get the chance to use his services or spend time learning from him, I would absolutely take it. He is a wealth of information and someone I highly recommend.