Bitcoin Exchange

Where people who know more about Bitcoin than you do trade Bitcoins, old-school government currencies (called fiat currencies, like USD), and altcoins (the rebel children of Bitcoins, which are their own currencies).

Bitcoin exchanges work just like stock exchanges, except uh...with Bitcoin. For instance, you can do a market order or a limit order, and you could be hit with currency conversion fees (ouch). Welcome to the new big boy exchange.