https://btc-e.com/betsI really don't understand this. They are letting you bet on what the price of bitcoin will be in 5 minutes. How is this fair at all? Could a whale not bet and then buy/sell to take everyones money?
It is not something new on gambling world. Because of extreme fluctuations of bitcoin prices, it's good to place a bet on up or down the price. I see it first on secondstrade service on their website.