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 ...

Harper's QR code for Lauren Conrad's L.A. Candy. HC is now cross-promoting the re-packaging of its Vampire Diaries series with the CW channel, which began airing the television series this fall. HC ...