Bitcoins are taking over the crypto-currency marketplace. is is the largest and most well-known digital currency. Many large companies are accepting bitcoins as a legitimate source of funds. They allow their online products cellphone companies to be bought with bitcoins. With the extreme facilitation of transfer and earning of bitcoins, it would be a mistake not to accept these new-found online coins as cash. With a fluctuating value, the funds can either help or hurt the company.