Adult Folio is a great place to get inspiration from the wonderful work that is shared. It has also enabled the opportunity to speak with those artists, both the photographer and model. I have also been fortunate to work with a couple of people here. As a site it is easy to navigate and the lay out is clutter free.

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.