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You might have a good sense of how your political opinions stack up against those of Arnold Schwarzenegger, Nancy Pelosi and Ralph Nader, but a new Web site from the University of California-Berkeley researchers can also show you how your viewpoints stack up against many others.

Opinion Space, which formally launches on Wednesday, is the brainchild of researchers at the Berkeley Center for New Media, the same outfit that brought us the Jester joke recommendation system and the Donation Dashboard, which aids people in giving to charities. The team behind Opinion Space calls it "an experimental model of opinion and dialogue… designed to go beyond one-dimensional polarities such as left/right, blue/red..." They have been working on the site since December.

Like earlier systems from Berkeley Center for New Media, Opinion Space relies on a technology called collaborative filtering to plot your opinions against others'