XLoveCam is a quite good webcam site with a lot of cams online at a time. They offer many private and public shows, but you don't get explicit stuff on the index like on other sites. It is more the erotic card they are playing here and the concept works. With all the bras showing up, you never really know whats behind! ;)
The downside of the shows is how the cams are presented after you have picked one. It shows up like a pop up, so you lose a lot of space which could be used much better and there are also tons of SD cams online.
What I like is the extra infos you get with each model. You don't only see where they are coming from, what you will see in the show, but also when they had their last shows to see when they approximately will go online again.