Official site - http://www.bitcoin.org.
BitCoin (Bitcoin, BTC) - exclusively an electronic payment system using the currency of the same name. Unlike other currencies, Bitcoin does not depend on the state, the bank, in a word, from any center that issues currency.
The acceptance of Bitcoin is gradually increasing. Many organizations around the world, including large exchangers and online exchanges, have accepted them for a long time.
IN The USA has a network of physical exchange offices where you can freely buy / sell BTC.
BitCoin is created on such a principle that makes it impossible for government or private regulation and manipulation of purchasing power by changing the money supply. The emission of Bitcoins is limited by a special algorithm.
RedStarPoker is the only poker room that accepts Bitcoins.