Here's a post to understand how QR Code Marketing came to be as it is the second form of popular mobile media after mobile apps, but the first offline form: http://mcloughlin.ca/insights/offline-mobile-media-done-right-the-qr-code-and-mobile-smartsites/ Here's a video of how we evolved from playing tag to facebook tagging through photos and eventually mobile tagging: [video=youtube;M437z_SknxE]http://www.youtube.com/watch?v=M437z_SknxE[/video]