Predictify, the site that lets you earn money by making accurate predictions on various events, has officially launched its public beta today. Founded by an ex-Google product manager along with a former VP at Zazzle, Predictify is going after the wisdom of the crowd to guess the outcome of things like Michael Vick's prison sentence, and how many iPhones will sell by December 31, 2007. We first reviewed Predictify here.
Users are able to post their own questions, and those that are premium (as in not free) are paid for by the person that's posted the question. Premium questions allow the user that's posted it to receive private, statistical feedback that would be more useful for research purposes. Any user can make a prediction on an event or question. For each question "profile" you'll see basic question stats, the ability to send the question to a friend, make a prediction, leave a comment, and read related news, which appears to be a feed from Google News on topics pertaining to your question.