The QR code (Quick Response) is the kind of hieroglyph is seen more and more on Internet services, it is actually a 2D barcode which makes it possible to put far more information than a simple bar code. Owners of camera mobile phones can therefore take pictures of this QR code which is then decoded by a program and make the code readable text form.
A business card should necessarily include a QR code so that we no longer have to manually copy our address book all the information from the person we just met. A QR code is ugly, unfortunately, but it is very fashionable, it is going very well. One day perhaps the QR code in color and will be less ugly.
In the meantime, you can make a poster of your facebook page and display it in your office, on the windshield of your car or distribute leaflets in the street.
You can easily create QR code for your Facebook fan page from SpotLike website.
QR code for your website or blog
You can create QR code of your blog, vCard or anything from QR Stuff website for free. There is paid option too for getting huge prints.