QR Codes, making pictures worth more than 1000 words.

QR codes are an increasingly interesting topic, mostly because the concept of them is so broad that they span our entire technological generation. A QR code is a machine-readable image, typically a square inch in size, whose pattern serves as a unique identifier for its purpose. Not only does the pattern identify the data type of the content (ex: website URL, YouTube video, telephone number, Skype contact) but it also identifies what the actual data is. What that means is websites like Wikipedia can have a QR code that links a user to any one of their web pages, based on the pattern of the QR code itself. It functions as a bar code for much of the technology that our lives already integrate with on a daily basis.

New app store app download? Educational YouTube video? Old love letter from an ex? The possibilities are seemingly endless with QR codes. Taken from: http://www.askingsmarterquestions.com/ 

What QR codes have most to offer is applicability and ease of use. Airports in the U.S. are equipped to scan QR codes that contain a passengers unique boarding pass information, and can scan them from a user's mobile device and making the process completely paperless. A QR code can contain a Google Maps location, allowing you scan it and have it populate your GPS, without having to manually enter that information. A networking programmer can have a QR code readily available, so that when it's scanned can jump an employer right to their shared Dropbox account, allowing full access to their portfolio. QR codes can be used very creatively and already being implemented worldwide.

For a reliable website that can help you generate your own QR code, go to http://www.qrstuff.com/.

Source:
http://en.wikipedia.org/wiki/QR_code