I've been playing Ringorang for a little while now. Ringorang is a trivia game that you can play via a widget on your desktop. (I believe you can also participate on the website.) They ask a question about..well..anything randomly once every hour. Depending on how quickly you answer and whether or not the answer is correct, you get "Dallions." Dallions are basically points. The contest runs from Monday to Friday. The top 10 winners get a t-shirt and the top 3 get other prizes. I think those prizes vary every week. It's a pretty neat game and it's easy to get addicted to!