QR Codes
Many don’t know this, but there is something called a QR code, which is basically a barcode format holding certain data. The example below holds my name, email and phone number. If you have an Android based phone you can use the bar code scanner application to add my contact information to your phone. You simple run the application, hold the phone so that the barcode displays on the screen within the box and it will give you a prompt asking if you would like to email me, call me or add me as a contact.
This image was also created using the Google chart api, so it is very easy to integrate into a site that holds contact information. I think I will add a QR code to my business cards to make it easier for people to save my information. I should also mention it does not have to be an Android based phone. Do a search for QR codes on mobile devices and you should be able to find some solutions.

December 16th, 2008 at 11:36 am
http://www.qrme.co.uk contains news, videos, forums, QR code tracking service and a QR code readers section. Everything you need to play with QR codes.
Ian. Admin. QRMe