Marketing strategies involving QR Codes are a great way to track users as well as your ROI on a particluar project. QR Codes are 2-d barcodes that can be scanned using a Mobile device. This unique barcode has the ability to provide additional information, launch websites, virtual tours, photos of a specific property, or offer incentives for certain products. This information can also be tracked to monitor the effectiveness of your materials, give you insight about your marketing and provide customers with immediate information.