Jump Dates is a free dating site that rewards it's members with credits based on how often they visit and how much activity they do on the site. The more credits you have the more features you'll have access to. For example if you engage in the blogs or forums you get points, once you have enough points you can view full profiles, send messages.
The concept is good to want to get active members and not just looky loos but it is a bit frustrating to not to be able to contact members prior to writing a blog post, especially for the "I want it now" generation.
Jump Dates is a 100% free dating site. No credit card charges.