Client attraction. Business growth. Pretty profits.
A QR (quick response) code is essentially a barcode with spots instead of the traditional bars. When scanned with a smart phone, it causes your smart phone to load data. If the data is a web address that web page opens on the phone.
For example, if you scanned the QR code above it would take you to Twitter’s home page. Don’t use QR codes on your web though – why would someone want to hold their smart phone up to scan the screen when they can click a link?!?