A few weeks ago I went to a free lecture on how to make six figures on the internet. It was pretty good. The guy who gave the talk shared his experiences and the strategies that ended up working for him.
The primary take-away for me was that you can make buckets of money on the internet if you really want to--but you have to really want it, and it's a ton of work.
Personally, I have never particularly wanted to make a lot of money, so I probably never will. I would guess that's true of most people. Anyone likes the sound of "six figures" but very few want the money badly enough to do the work required to earn it.
So, lesson number one is, most people should stop complaining about how little money they make. If it were a higher priority, they could be making plenty more. They just don't care enough to get off their butts and do it. (And I mean most Americans, by the way--can't say about people in other countries.)
And then the other lesson is, you can accomplish all kinds of things that seem beyond the reach of ordinary people if you're passionate enough about it.
Someday I hope to write some books that will actually be accepted by a publisher ... but at the present time, it's not a high enough priority in my life to actually happen. I think that's okay, though--what all is going on in my life now is future grist for the writing mill ...