Bitcoin, dogecoin and other cryptocurrencies are alternatives to more traditional currencies like bank notes and precious metals.
Sponsor message: Give Audible’s monthly audiobook service has more than just audiobooks! – use audible.com/techquickie to get the first one for free!
Sponsor Link: http://audible.com/techquickie
Bitcoin sub-forum link: http://linustechtips.com/main/forum/37-foldinghome-boinc-and-coin-mining/