100 domains -> 10,000 posts on each, could be turned into 1,000 domains -> 1,000 posts each too. 1,000 posts is quite a lot, and I am not sure if something like 10,000 is needed, probably not.
Different IPs would need to be used (seo hosting, I will be researching this now), along with multiple Wordpress Multisite installations. Then main websites would be picked, could be around 100 with a set of 1,000 sites, and interlinked in a certain way.
Own links between the sites + Linkspun + some kind of other links probably (could be paid, something fast, but working). All this would be automatically posted to social media sites also, in the best possible way (but fast, efficient).
I am not sure what would be the best "recipe" for something like this. 1,000 domains is a lot. It could be 100 domains, 1,000 posts on each.
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I am not sure how much something like this could make too, and what else can be improved. I will be looking at advertising methods on all these, lets say 100 sites, too, and it wont be just a popunder, and some kind of
Exoclick ads, which in the end dont make too much money (relatively). In general, if done correctly, this sounds like something that should work...