What's bitcoin? – 'Fiat' money may be on the way out

Cryptocurrencies, like bitcoin, are gaining popularity. In fact, they're so popular, they've already experienced their own bubble, seen it burst, and are now on the rebound. If you missed the whole thing, don't feel left out. Bitcoin and similar “altcoin” — including Ethereal, Ripple, and hundreds more — are …
Google Alert – bitcoin