The question that comes immediately to mind is: why do the articles have to be keyword-rich in the first place?
Articles (good ones, that is) are sources of information, opinions and ideas that very few others have thought of.
As far as promoting the article on other article sites, they're doing their own search engine promotion and you're piggybacking off of it, not the other way around. The only way it works in reverse is if you start linking to their stuff. That's why your article shows up within 24 hours on Google; they did their work so that you can take advantage of it.
You're nothing more than a content provider to them.
As far as new ideas, you're not likely to find any these days. If it's "new", it either dies on the vine or gets copied a million times over in six months.
|