Predictwallstreet.com

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PredictWallStreet.com provides continually updated forecasts of stock prices based on the collective wisdom of its users.

The idea is simple. Users predict whether a stock price will go up or down. Based on proprietary algorithms, all user predictions are weighted and combined.

Since the stock market moves based on the collective thinking of thousands of individuals, the more people who predict on PredictWallStreet.com, the more potentially useful the information on the site becomes.

The site was founded by Craig Kaplan, who studied under Herb Simon at Carnegie Mellon University.