Forget stickers. Real geeks show their commitment with something more permanent: laser engraving. And Jason Fields takes your etching and raises you one QR code. Sure, it's too big for most little QR ...

With the rapid and continuous development of online marking, the traditional marking like character, digits, barcode can not satisfy some special requirement by different customer. The normal marking ...

Venture outside and you’ll soon see them. Printed on posters and signs, pasted on pub walls and hotel lobbies, taped to picnic tables in beer gardens: QR codes. This story originally appeared on WIRED ...