Really cool idea for a website. Rewarder is easy to use and avoids a lot of the stupid answers and questions that plague yahoo answers. If your looking for an easy (and unfortunately small) pay day this isnt a bad place to go.
Pretty neat website. Appears to be in early development. Users offer cash rewards for solutions to their problems. It differs from a site like Yahoo Answers, in that it's more about finding solutions than simply answering questions.
Rewarder, a bit confusing, is site that will pay you for your opinion. The premise is that people will be more willing to give their honest opinion with monetary incentive. Looking for some extra change? Give it a try.