In just eight years, Bitcoin and the idea of “virtual currency” have gained acceptance and use both online and in the physical world. Spread by word of mouth and other “viral” means, decentralized virtual currencies have gone from a mere thought experiment to a tangible economic reality.
Today, one can use Bitcoin or other currencies not backed by the U.S. government to buy physical goods and services and online services. Established companies, such as Dell, DISH Network, Microsoft, and Papa John’s Pizza, all accept Bitcoin payments.
http://thehill.com/blogs/congress-blog/economy-budget/265595-bitcoin-other-alt-currencies-offer-more-choices-for
