The Google Blog has a nice page outlining how they use Crowd Wisdom to predict when , and how their internal projects will turn out.
The basic idea is that project participants and observers are given electronic ‘shares’ in the project. People are then free to buy and sell these shares based on what they think is likely to happen (the new office opens on time, a new project fails to deliver).
While it’s a game, it’s been proven to be more accurate than traditional areas of forecasting, probably because it gets input from so many people.
Could this tool predict your project success?