I like this question, because I think a lot of people have the same confusion. That’s probably why you see different business plans handling this in different ways, although I think our products are fairly clear in their instructions and examples.
As far as we are concerned, your market is made up of target customers or groups of target customers, and your industry is the business you’re in. In your case that would mean the quick view is the market is affluent young people and the industry is Web based training. So the market analysis needs to explore the affluent young people with access to the Web, who they are, how many, what their needs are, trends, etc. Your industry is Web based training, and perhaps training in general or computer-aided training, so the industry analysis should explore that business, who offers what services, how big they are, what their business models might be, economics, etc.
I hope that helps,