Bitcoin basics: What you need to know By: MarketWatch April 09, 2014 at 00:01 AM EDT You’ve been hearing a lot about bitcoin. But just what the heck is it? Here’s what you need to know, from how it works to what you can buy with this digital currency. Read More >> Related Stocks: Bitcoin (Bitstamp) Overstock Com Ord Shs Zynga Inc Cl A