QR codes are indeed one of the most innovative tools in the technology world. Despite the fact that they have been around for quite some time, they recently gained popularity and are being leveraged for marketing and creating brand awareness in several companies all over the world.
Many business entities have taken to social media as a great tool for advertising. It is a smart move because advertisement costs are downsized tremendously. Successful stories of entrepreneurs who did not have any physical outlets for their products or spend a dime in advertising are common.