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Bitcoin?
http://en.wikipedia.org/wiki/Bitcoin
http://www.debate.org/opinions/is-bitcoin-a-scam
Get your cloud Bitcoin wallet and Bitcoin address here:
https://blockchain.info/wallet

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and get 0.00000250 Bitcoins , 0.00007671 Litecoins and 0.00604838 FeatherCoins for free. Furthermore, you will get more coins to your account every single day. 



    µBTC/uBTC is a micro Bitcoin, or 0.000001BTC.
    A satoshi is currently the smallest fraction of a Bitcoin, or 0.00000001BTC.

You'll need a Bitcoin wallet, either a standalone client wallet or a wallet from a service like Blockchain.info