The Morning News has an interview with Chad States about his series of photographs of Men at Their Most Masculine. Some of the photos are NSFW.
I found all my subjects through Craigslist. I began by asking the question "Are you masculine?" in the heading. In the body of the posting I talked briefly about the project. Much to the effect of: "I am doing a photography project on masculinity. If you identify as being masculine, please get back to me."
Masculinity seems to involve a lot of shirtlessness (and pantslessness). This one is kind of amazing.
"I am masculine because I abandon women after taking their love. Because when you study Freud, you don't let him study you. Because I study philosophy, not literature."
More of States' masculinity photos can be found on his web site.