Blockchain Websocket API – JavaScript

Video tutorial on using blockchain.info’s websocket API to monitor a specific Bitcoin address in real-time.
Building Bitcoin Websites Book: https://www.amazon.com/Building-Bitcoin-Websites-Beginners-Development/dp/153494544X
Google Chart API url for QR code: http://chart.googleapis.com/chart?chs=200×200&cht=qr&chl=