During a six-month high in the value of Bitcoin, a venture-backed startup has released an iPhone app that lets you buy, sell and trade bitcoins from your mobile phone.
PayPal's latest rollout, which allows merchants to accept payment through an application that scans QR codes, is one in a string of developments aimed at overhauling the way customers pay for goods.
About 250,000 people use Dwolla, a payment network that charges just 25 cents for transactions of $10 or more. Dwolla's transactions on pace to total $1 billion in 2013.
Virtual currency Bitcoin has been making headlines recently. Don't worry if you still don't know what it's all about. This motiongraphic breaks it down.