Part of the problem I think, is that there just happen to be more males into cfnm than females. Making a paysite, and having scenes shot is pretty expensive - you are talking $1-2 per scene, and that has to be paid for somehow. Add in the editing, bandwidth, upkeep and other sundry factors, and I can see why most cfnm sites go for a target male audience (in general terms).
The stripper sites such as
This One are obviously shot at real events, so naturally feature tipsy women behaving badly, and personally I find that a great turn on from both sides - the women able to relax in a large female only environment, free to have 'fun with the girls' much like men would at a stag night, and the strippers themselves in the role a lot of male cfnm fans enjoy - being the centre of attention, to willing women who see him as a sex object. It doesn't matter if they are drunk or not, it's the fact they are obviously enjoying themselves so much that their inhibitions in a normal environment go out the window.
As for sites such as
Pure Cfnm and
The Cfnm Site, which are geared more towards women, though obviously with male surfers foremost in mind, I think they do a decent enough job of mixing up the different cfnm scenarios and sub-fetishes within cfnm (such as humiliation, exhibitionism, female dominance, male embarrasment, etc) that cfnm fans as a whole, be they male or female can take enough from them to be satisfied.