The value of a #Bitcoin
soared to more than $1,000 (£614) this week, five times the price earlier in the month.
This "virtual" currency can be used to buy beer in Berlin, pizza in Amsterdam, socks from Massachusetts or a dental check-up in Ljublijana.
We've been considering why its popularity has rocketed and if it has a future: http://bbc.in/1aZIm4z
What do you think?