Unsure if you want sites to promote of if you're just interested in buying content...but if you're looking for some awesome unique content and sites that convert and rebill like crazy, then check out 2 of mine:
http://www.femmexotique.com/Webmasters.htm
100% Original Exclusive Photography by femmeXotique
Bondage, BDSM, Sub/Domme, Spanking,Nipple Torture, etc.
Photos and Xotique Stories
Also my own fetish/bondage site
http://fetishivy.com/Webmasters.htm
Bondage,BDSM,Vinyl, Leather, and all things Fetish and Erotica
Images and Video
Hit me up on ICQ to customize sets
Ivy