Everywhere you look at the South by Southwest conference this week, you see QR codes. The square “quick response” codes turn URLs, vCards, or any kind of text into a jumble of pixels that you can scan ...

MINNEAPOLIS (WCCO) --Square, black and white codes are popping up all over on products, in magazines, on buildings and business cards. QR codes, or quick response codes, link the outside world to the ...

As of this week, I’ve hopefully handed out my last business card. Not that I have no need to promote my humble newsletters or freelance work, but I’d rather not have to carry a stack of business cards ...