Going back to the OP myself, I noticed something the other day when surfing the net. It didn't matter what my question was, there were e-books, programs and courses to the rescue. The internet is littered with sales pages! It's like I said, if something looks easy, count on lots of people doing it already.
If you want to stand a chance at making good money, I think the key is to capitalize on both online and offline sources of income. That is a bit of keyboard theorizing, I will admit. I really can't say if that is the best way of making lots of cash. I am, though, in the process of finding out
I'm simply not going to attempt blogging for money anymore based on the sheer number of blogs that are out there. I am going to try selling a personal finance course through a sales page and eventually financial coaching. In the meantime, I still have my framing business (which has yet to prove itself, will run the numbers in January) which is entirely offline. There reason I can do either of those things is because I have a job. Sure, it eats up a lot of my time but I can pretty much keep trying business options until I find one that will make money. If either one of those two turned out to be bust, it would not be a catastrophe. It'd be "Damn, that didn't go so well. What's next?" as oppose to "How am I going to pay the rent!?!".
Anyhow, eventually I will find my cash cow. The more seeds you sow the more you will ultimately harvest