I run advertisements looking for models every now and then on various sites but the vast majority of the girls from my site are directly recruited by myself out in public locations such as shopping malls, movie theaters, amusement parks...etc. But out of curiosity, I signed up with Modelmayhem in the past - only to get my account deleted immediately.
Hell, all ll I was advertising for was simple nude modeling.
Modelmayhem sucks fucking ass bro. Don't waste your money.