I didn't create this guide yet because I can't really determine if there is a market for it or not. I know it would be a fun book to write or even create a hard copy course out of.
My thoughts were as follows.I was going to create an ebook on how to brew beer, then create a home study guide that arrives in the mail. I would then create a sales letter, a few follow-up autoresponder emails and whatever else is needed and sell the lot as a complete turnkey business.
You could even sell this business on Ebay.There is plenty of free information floating around the Internet on how to brew beer from home, but no real course that I can see, so I think a lot of people would be interested in this.