It's broken down by city and who you're looking for, and the link above is to the Los Angeles casual encounters page of women looking for men.Many of the posts are bogus, and they do a good job of fladding them, but there are definitely real people looking to hook up posting on these sites, so if you're willing to spend the time browsing, then have at it.
Craig's List Personals This has become the ultimate personals site.
Categories include romance, casual encounters and more.
It's the site that pioneered the idea of creating a true match based on personality characteristics. You can get matches for free but after that you'll need to pay.
What to Say in Your First Message OK Cupid has a great blog with tips and insight into how to use online dating sites.
Right now you can get a FREE lifetime membership without giving your credit card info, then decide on the paid version later!!
This site is a free dating site deovoted to the idea that great dates start with great online chat.
You'll also find a great selection of dating articles and advice along with the ability to do a free search of singles in your area.
Sign up to one of the dating rooms through Free Dating and you'll receive various membership bonuses at the dating room.
The result is a pretty awesome hookup site where you can meet real women posting pics and starting converations.