QR codes—essentially square bar codes that can easily be read by mobile phones, amongst other devices—could potentially make information exchange much easier, but haven’t really taken off. Are their benefits being overlooked?
Blogger Daniel (who has asked Lifehacker readers for creative photography ideas in the past) runs down the pros of QR codes in a post on his site, including links to resources for use on a bunch of mobile devices. I must admit QR codes have always seemed a little gimmicky to me (a lot of their proposed uses centre around advertising), but printing them on a business card could be useful.
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