http://casualfriendfinder.co.uk/registration
Casual Friend Finder has a number of interesting features that a lot of other casual dating sites forgo, including video chat, a blackbook feature (essentially a friends list), the ability to "safely" search (meaning: shut off viewing of explicit photos and video feeds),and put your profile in discreet mode (only allowing people in your blackbook to view your profile). Every users home page also shows a random list of live cam feeds from different users - which although it makes the page load a bit slower than normal, is still a fun, frivolous, and very frequently used feature.