Model Mayhem - A great resources to connect models and photographers. I've done a lot of work through there.
One Model Place - A great site for networking. I worked with multiple models I discovered on there.
Modsheet -
Another good site to meet models and photographers.
Malemodelsonline.com - "Our goal is to provide the
most comprehensive listing of new and professional male models seeking work in the U.S.A and throughout the
world."
Modellaunch.com - The
first online publication devoted exclusively to covering
the world of male models and the image-makers of the men's fashion
industry: the professionals who manage, photograph and groom the models
and the
designers who make the clothes they
wear.