Since starting with Adultfolio I've had more genuine bookings, both as a model and for my studio, than I ever have from any other modelling site.
Through this site I've been lucky enough to become a muse for a top class photographer and I've had some great regular bookings in my studio.
The best thing I ever did was to sign up with Adultfolio xx

I am on many sites that you can use as a photographer to contact models, adultfolio is most likely the one where models actually answer your questions.
Apart from direct model to model recommendations this is the best way to arrange photoshoots, all types of models are here, from art-nude to hardcore, so every photographer will find what he is looking for.