QR codes are cool, but they haven't quite caught on en masse yet, because finding cool uses for them have been challenging. One popular use for QR codes is printing them on business cards. Sharon ...

QR codes probably aren’t something you use on a daily basis, but they are incredibly useful when you need them. If you’re a big WhatsApp fan, you can now use QR codes to import contacts into the ...

A QR Code scan is like a raised hand in a crowded room. It's voluntary, visible, and tells you exactly who's interested. Compare that to website cookies, which are more like secretly following someone ...