http://www.intrade.com/We've created an exchange for you to trade (speculate on) events that directly affect your life, like politics, entertainment, financial indicators, weather, current events and legal affairs - these are our trading categories.
Within each category we list a set of contracts, a contract is an event that will have an unambiguous result.
For example, some of our political contracts are: "Will George Bush be re-elected in 2004" or "Will John Kerry win the Democratic Nomination". Each one is an event with an unambiguous result, either George Bush will be re-elected or he won't.
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Does selected count?