New guest post! This one comes in from Ben Donahower and covers a topic we haven’t addressed here before: how campaigns can use QR codes, those cellphone-friendly rectangular descendents of barcodes that have been appearing lately on signs and...
New guest post! This one comes in from Ben Donahower and covers a topic we haven’t addressed here before: how campaigns can use QR codes, those cellphone-friendly rectangular descendents of barcodes that have been appearing lately on signs and...