Barcodes, QR codes, readers, 2D barcodes (have you ever seen a 3D barcode?). There’s a lot of debate in the marketing world about just how useful these scan-able images can be for businesses, and that debate continued on the May 13th episode of HubSpot’s Marketing Update with Karen Rubin and Mike Volpe. Opinions ranged from “who would waste their time using those?!” to “I just don’t think marketers have figured out how to use them yet.”
Drew Fortin explains in:
http://blog.hubspot.com/blog/tabid/6307/bid/16088/Everything-a-Marketer-Should-Know-About-QR-Codes.aspx