We just partnered with a new site
The Adult World - Free adults only social networking for friends, sports, groups, services, and dating and are lost for ways to promote. It's essentially a adult social network kind of dating site.
But so far, I have done addwords and classifieds but have got no response. You can you think of any advertising that would convert for sure, I don't mind paying but I need members to sign up. It's free BTW