I started with actresses (and some actors) from the local theater and burlesque scenes. Then I joined Model Mayhem, which is a great place to meet women (or men) interested in modeling, makeup, etc.
The more of them that I work with, the easier it is to find others. I also find them through Facebook. Many of my subjects are friends of other people I've shot.

Just how do you find the :)

Thanks guy. Finding them is sort of a constant, and sometimes exhausting, quest.

Yea. Wow! Tim, your models rock! Pictures too :)