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Kim Kardashian released an ad in December for her brand, Skkn by Kim, that included a QR code. Kardashian is one of many entrepreneurs using QR technology in their marketing strategies. Here's how small-business owners can find and retain customers with the tool.QR codes are reemerging as tools for business owners, and now entrepreneurs like Kim Kardashian are using the barcodes for growth and outreach.
Kardashian...