It works best in the evenings (US eastern Standard time to Pacific time), and at weekends.
It has a no-nudity policy -though this is not very well moderated at times- and it will bounce you to the ‘unmoderated’ section if you get banned, where the ratio of girls to guys is far, far worse (1 in 50 to 1 in 100 at times).
Girls changing clothes, masturbating, nude, fucking, peeing, giving blowjobs, upskirt... Here's a list of the best webcam chat rooms where you can find free cyber sex.
Some of these connect you directly cam-to-cam with other users.
Once a sausage fest, it now requires registration, and it has a strict no-nudity policy.
However, it has recently introduced ‘Tinychat Next’, a random cam-to-cam service similar to Chatroulette, and it has made it easier to find cam sex on the site. Because it is relatively new, it seems to be free of all the spam omegle suffers from. However -like omegle and chatroulette- the site bans you for nudity, and its business model is to ask you to pay to get unbanned.
If you are going to use this, make sure you bounce off to skype before you show anything. Used to offer random cam-to-cam, but this service seems to have gone. Displays fake webcam streams and requires you to subscribe to a paid service to send messages.
Try the ‘Girls Watching Guys on Cam’ chat room for best chances of success, though some of the other chat rooms will work equally well.
Granted, there might not be as many girls on there as there are on some of the other sites mentioned here (apparently, Adult Friend Finder has a 16 to one male to female ratio), but given the nature of the site, you can get from chatting to sex much faster than with any of the other chatrooms below.
Others are free full blown chatrooms, where you can chat with a variety of people before asking them for a private webcam conversation.