I've seen what some of them do, and it's not as impressive as you'd think. Most of it breaks and stops working inside of 24 months. Then it's on to the next scam. Not a lot different from fly-by-night snake oil salesmen.
Just the existence of spam doesnt prove it's a big oppotunity, just that it's better for some people than their opportunity cost.
Thanks for posting that. It's funny-- your strategy is exactly the way I do lead gen for my customers. I wrote a bunch of software to sniff serps (great expression, btw) and find long tail keywords that will drive leads for the client.
Then we produce articles (we actually hire real journalists) to address the search intent behind the keywords. Then we post it on the client's site, and charge them for the leads we drive via organic search from that content.
The funny thing is, our customers just view it as "content marketing," not SEO. Search data (search vol, competition, etc.) guides our content strategy, but I don't view this part as either good or bad. Or even really "SEO". Why would anyone invest in content nobody is searching for?!?
If we spun content or used Markov chains to generate gibberish or hired incompetent writers via TextBroker for $10 a story, sure that's spam.
But my calculation is that spending $500+ on an article written by a journalist with domain expertise is going to win long term. And since the lead revenue makes the ROI calculation >1, why not invest in quality?
And we definitely don't make Google guess what keyword we think our article would help.
thats the route I would take as well. But, I would use SEMrush to sniff out the rankings for Demand Media and other content farms, and then create quality content to target those keywords, trying to displace their crap hat content.
Just the existence of spam doesnt prove it's a big oppotunity, just that it's better for some people than their opportunity cost.