I like to buy content for a niche, match it with a paysite of that niche, promote it on almost every ad in the free site.
But also have a "secondary" site to promote. Usually either on the bottom of the index, bottom of main page, or bottom of gallery 1 actually.
Something that is not a standard competing paysite, but rather a specific movie title, maybe a dating site, sex toy store, etc..
Since the three paysites in your sample are all PimpRoll ebony sites, I'd specifically suggest that you pick only one of them, then maybe toss in a link to the ebony niche of Downloadpass, or even a specific title w/boxcover image (ebonydymes maybe).
Anyway, basically break it up a *little* bit, but something that complements the primary sponsor rather than competes with it.
Good luck
