SexyAds.com is a bit of a free for all in terms of what niches it serves. Although it's unfocused, it works out as a positive as a dating site because it allows for people with different interests to hookup.
City-Data.com is an online hookup forum hidden within a site whose primary business is collecting data from different cities in the U.S. and creating reports about various topics using the information.
TooTimid.com — Shy boys and girls out there who want to join a dating site but worry that they won't be good at sex, need to rejoice because TooTimid.com will answer all of your sex questions and help you find other inexperienced lovers.
ILoveInterracial.com — For lovers of interracial dating, you might already be familiar with ILoveInterracial, but if you're not, you're in for a treat. One of the best free interracial dating forums we've checked out.
FemaleFirst.co.uk is a forum for women to discuss the world and their lives in it, but there's also a hookup forum for the single ladies who're looking for some action.
LuckyMojo.com is a supernatural dating forum that can help you save your love life through the help of a spiritual medium. So if you don't mind a few ghosts involved in your love life, this is an interesting option.
ExposedForums.com is a exposing and dating forum for people who get off on having their secrets exposed to the world.
GirlsChase.com is a system that teaches men who don't know how to speak to women how to harass them until they break down and agree to go out on a date with them.