One of the tried and true models for online business is site flipping. You understand that this is all about building a site and then flipping it or selling it. Have a realistic idea about this because if you make cheap sites with low quality, then you will either get a low price or not sell it at all. One thing about this is you really need to be motivated to do well because you are not paid upfront for anything. As long as you are willing to create something people want, then you have a chance at doing well. There is not much to learn aside from how to make a good site, and after that you can throw your hat in the ring.