The promotional graphic that divides opinion. I remember thinking how lame text messaging was when I discovered it on my mobile. I heard similar reactions towards email and the web itself. Twitter and Facebook have suffered the same assignations but their rapid adoption is nothing short of ground breaking. So... QR Codes.
The Generic QR code
The black and white chaotic chess board. The solid black squares are what the QR scanner locks on to in order to make the reading.
This is an E-book. Twitter for Beginners
PCM creative media, *between offices right now* East Midlands, UK