I promote 2 affiliate programs that are on opposite sides of the spectrum:
OTcash - a softer than soft Tease site that offers the hottest gals in the UK. They also offer a free plug-in that would go really nicely in your members area.
and
HowIgotRich - with extremely well converting sites like
GloryHoleGirlz and
CrackwhoreConfessions among others, its well worth marketing and getting a piece of the
Million Dollar Bonus